How to Solve CBSE MCQ Questions Quickly. We covered How to Solve CBSE MCQ Questions Quickly along with some MCQs for CBSE students in this post for free so that you can practice well for the exam.
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These types of competitive MCQs appear in exams like SSC, Railway, Bank, Delhi Police, UPSSSC, UPSC (Pre), State PCS, CDS, NDA, Assistant Commandant, and other Competitive Examinations, etc.
We created all the competitive exam MCQs into several small posts on our website for your convenience.
You will get their respective links in the related posts section provided below.
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How to Solve CBSE MCQ Questions Quickly
Here are some effective strategies to tackle CBSE MCQ questions efficiently:
1. Master the Basics:
- Thorough Understanding: Ensure a solid grasp of core concepts and formulas.
- NCERT Textbook: Refer to the NCERT textbooks for a clear and concise explanation of topics.
- Regular Practice: Solve numerous MCQs from various sources to reinforce your understanding.
2. Time Management:
- Time Allocation: Practice solving MCQs within a specific time frame to improve speed.
- Prioritize Questions: Identify and solve easy questions first to boost confidence and save time for challenging ones.
3. Effective Reading:
- Keyword Identification: Quickly identify keywords in the question to pinpoint the relevant information.
- Elimination Technique: Rule out incorrect options to narrow down the choices.
4. Smart Guessing:
- Educated Guesses: Use logical reasoning and eliminate obviously wrong options.
- Pattern Recognition: Look for patterns in the options, especially in numerical questions.
- Avoid Random Guessing: Only guess as a last resort, and consider the possibility of negative marking.
5. Exam Strategies:
- Read Instructions Carefully: Understand the marking scheme and time constraints.
- Manage Stress: Stay calm and focused during the exam.
- Review Answers: If time permits, quickly review your answers to avoid careless mistakes.
Additional Tips:
- Create a Study Schedule: Allocate specific time slots for each subject.
- Join Study Groups: Discuss concepts with peers and clarify doubts.
- Take Mock Tests: Simulate exam conditions to assess your preparation level.
- Analyze Mistakes: Identify areas of weakness and focus on improvement.
By following these tips and practicing consistently, you can significantly improve your speed and accuracy in solving CBSE MCQ questions.
Here are Some MCQs for CBSE Students
1 mV is equal to:
(a) 10 volt
(b) 1000 volt
(c) 10⁻³ volt
(d) 10⁻⁶ volt
Option c – 10⁻³ volt
Coulomb is the SI unit of:
(a) charge
(b) current
(c) potential difference
(d) resistance
Option a – charge
When electric current is passed, electrons move from:
(a) high potential to low potential
(b) low potential to high potential
(c) in the direction of the current
(d) against the direction of the current
Option b – low potential to high potential
The heating element of an electric iron is made up of:
(a) copper
(b) nichrome
(c) aluminium
(d) iron
Option b – nichrome
The electrical resistance of insulators is:
(a) high
(b) low
(c) zero
(d) infinitely high
Option d – infinitely high
Electrical resistivity of any given metallic wire depends upon:
(a) its thickness
(b) its shape
(c) nature of the material
(d) its length
Option c – nature of the material
Electric power is inversely proportional to:
(a) resistance
(b) voltage
(c) current
(d) temperature
Option a – resistance
What is the commercial unit of electrical energy?
(a) Joules
(b) Kilojoules
(c) Kilowatt-hour
(d) Watt-hour
Option c – Kilowatt-hour
Three resistors of 1 Ω, 2 Ω, and 3 Ω are connected in parallel. The combined resistance of the three resistors should be:
(a) greater than 3
(b) less than 1
(c) equal to 2
(d) between 1 and 3
Option b – less than 1
An electric bulb is connected to a 220 V generator. The current is 0.50 A. What is the power of the bulb?
(a) 440 W
(b) 110 W
(c) 55 W
(d) 0.0023 W
Option b – 110 W
The resistivity of insulators is of the order of:
(a) 10⁻⁸ Ωm
(b) 10¹² Ωm
(c) 10⁻⁶ Ωm
(d) 10⁶ Ωm
Option d – 10⁶ Ωm
1 kWh = …………… J
(a) 3.6 × 10⁻⁶ J
(b) 3.6 × 10⁶ J
(c) 3.6 × 10⁶ J
(d) 3.6 × 10⁻⁶ J
Option c – 3.6 × 10⁶ J
Which of the following gases are filled in electric bulbs?
(a) Helium and Neon
(b) Neon and Argon
(c) Argon and Hydrogen
(d) Argon and Nitrogen
Option d – Argon and Nitrogen
At the time of short circuit, the electric current in the circuit:
(a) varies continuously
(b) does not change
(c) reduces substantially
(d) increases heavily
Option d – increases heavily
Two bulbs of 100 W and 40 W are connected in series. The current through the 100 W bulb is 1 A. The current through the 40 W bulb will be:
(a) 0.4 A
(b) 0.6 A
(c) 0.8 A
(d) 1 A
Option d – 1 A
A cylindrical conductor of length ‘P’ and uniform area of cross-section ‘A’ has resistance ‘R’. The area of cross-section of another conductor of the same material and same resistance but of length ‘2P’ is:
(a) A/2
(b) 2A
(c) A/3
(d) 3A
Option b – 2A
The maximum resistance which can be made using four resistors each of resistance 1 Ω is:
(a) 2 Ω
(b) 1 Ω
(c) 2.5 Ω
(d) 4 Ω
Option a – 2 Ω
Electric potential is a:
(a) scalar quantity
(b) vector quantity
(c) neither scalar nor vector
(d) sometimes scalar and sometimes vector
Option a – scalar quantity
The change in the focal length of an eye lens in human beings is caused by the action of:
(a) optic nerves
(b) ciliary muscles
(c) retina
(d) cornea
Option b – ciliary muscles
The phenomena of light involved in the formation of a rainbow are:
(a) Refraction, dispersion, and scattering
(b) Refraction, reflection, and dispersion
(c) Refraction, dispersion, and internal reflection
(d) Reflection, dispersion, and total internal reflection
Option d – Reflection, dispersion, and total internal reflection
In the human eye, the part which allows light to enter into the eye is:
(a) Retina
(b) Pupil
(c) Eye lens
(d) Cornea
Option d – Cornea
The defect of the eye in which the eyeball becomes too long is:
(a) myopia
(b) hypermetropia
(c) presbyopia
(d) cataract
Option a – myopia
The defect of vision in which the image of nearby objects is formed behind the retina is:
(a) myopia
(b) short-sightedness
(c) hypermetropia
(d) presbyopia
Option c – hypermetropia
Which of the following is a natural phenomenon caused by the dispersion of sunlight in the sky?
(a) Twinkling of stars
(b) Stars seem higher than they actually are
(c) Advanced sunrise and delayed sunset
(d) Rainbow
Option d – Rainbow
Name the scientist who was the first to use a glass prism to obtain the spectrum of sunlight:
(a) Isaac Newton
(b) Einstein
(c) Kepler
(d) Hans Christian Oersted
Option a – Isaac Newton
The sky appears dark to passengers flying at very high altitudes mainly because:
(a) Scattering of light is not enough at such heights.
(b) There is no atmosphere at great heights.
(c) The size of molecules is smaller than the wavelength of visible light.
(d) The light gets scattered towards the earth.
Option a – Scattering of light is not enough at such heights
The least distance of distinct vision for a normal eye is:
(a) infinity
(b) 25 cm
(c) 2.5 cm
(d) 25 m
Option b – 25 cm
A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power:
(a) +0.5 D
(b) -0.5 D
(c) +0.2 D
(d) -0.2 D
Option b – -0.5 D
The defect of vision in which a person cannot see distant objects clearly but can see nearby objects clearly is called:
(a) myopia
(b) hypermetropia
(c) presbyopia
(d) bifocal eye
Option a – myopia
The splitting of white light into different colors on passing through a prism is called:
(a) reflection
(b) refraction
(c) dispersion
(d) deviation
Option c – dispersion
Bifocal lenses are used in:
(a) myopia
(b) dry eye
(c) cataract
(d) presbyopia
Option d – presbyopia
Twinkling of stars is due to:
(a) reflection of light by clouds
(b) scattering of light by dust particles
(c) dispersion of light by water drops
(d) atmospheric refraction of starlight
Option d – atmospheric refraction of starlight
When white light enters a glass prism from air, the angle of deviation is least for:
(a) blue light
(b) yellow light
(c) violet light
(d) red light
Option d – red light
When white light enters a glass prism from air, the angle of deviation is maximum for:
(a) blue light
(b) yellow light
(c) red light
(d) violet light
Option c – red light
The amount of light entering the eye can be controlled by the:
(a) iris
(b) pupil
(c) cornea
(d) ciliary muscles
Option b – pupil
What type of image is formed by the eye lens on the retina?
(a) Real and erect
(b) Virtual and inverted
(c) Real and inverted
(d) Virtual and erect
Option c – Real and inverted
The medical condition in which the lens of the eye of a person becomes progressively cloudy, resulting in blurred vision, is called:
(a) myopia
(b) hypermetropia
(c) presbyopia
(d) cataract
Option d – cataract
To obtain a magnification of +2 with a concave mirror of radius of curvature 60 cm, the object distance must be:
(a) -90 cm
(b) -45 cm
(c) -30 cm
(d) -15 cm
Option c – -30 cm
In torch lights and headlights of vehicles, the bulb is placed:
(a) between the pole and the focus of the reflector.
(b) very near to the focus of the reflector.
(c) between the focus and center of curvature of the reflector.
(d) at the center of curvature of the reflector.
Option b – very near to the focus of the reflector
If the image is formed in front of the mirror, the image distance will be:
(a) positive or negative depending on the size of the object
(b) neither positive nor negative
(c) positive
(d) negative
Option d – negative
A ray of light is traveling from a rarer medium to a denser medium. While entering the denser medium at the point of incidence, it:
(a) goes straight into the second medium
(b) bends towards the normal
(c) bends away from the normal
(d) does not enter at all
Option b – bends towards the normal
A student wants to obtain an erect image of an object using a concave mirror of 10 cm focal length. What will be the distance of the object from the mirror?
(a) Less than 10 cm
(b) 10 cm
(c) Between 10 cm and 20 cm
(d) More than 20 cm
Option a – Less than 10 cm
If the power of a lens is -2 D, what is its focal length?
(a) +50 cm
(b) -100 cm
(c) -50 cm
(d) +100 cm
Option c – -50 cm
A spherical mirror and a spherical lens each have a focal length of 10 cm. The mirror and the lens are likely to be:
(a) both concave
(b) both convex
(c) the mirror is concave and the lens is convex
(d) the mirror is convex and the lens is concave
Option a – both concave
If the magnification produced by a lens has a negative value, the image will be:
(a) virtual and inverted
(b) virtual and erect
(c) real and erect
(d) real and inverted
Option d – real and inverted
When the object is placed between f and 2f of a convex lens, the image formed is:
(a) at f
(b) at 2f
(c) beyond 2f
(d) between O and f
Option c – beyond 2f
Which mirror can produce a virtual, erect, and magnified image of an object?
(a) Concave mirror
(b) Convex mirror
(c) Plane mirror
(d) Both concave and convex mirrors
Option a – Concave mirror
The laws of reflection hold true for:
(a) plane mirrors only
(b) concave mirrors only
(c) convex mirrors only
(d) all reflecting surfaces
Option d – all reflecting surfaces
When an object is kept within the focus of a concave mirror, an enlarged image is formed behind the mirror. This image is:
(a) real
(b) inverted
(c) virtual and inverted
(d) virtual and erect
Option d – virtual and erect
A real image is formed by the light rays after reflection or refraction when they:
(A) actually meet or intersect with each other.
(B) actually converge at a point.
(C) appear to meet when they are produced in the backward direction.
(D) appear to diverge from a point.
Which of the above statements are correct?
(a) (A) and (D)
(b) (B) and (D)
(c) (A) and (B)
(d) (B) and (C)
Option c – (A) and (B)
Consider the following properties of virtual images:
(A) cannot be projected on the screen.
(B) are formed by both concave and convex lenses.
(C) are always erect.
(D) are always inverted.
The correct properties are:
(a) (A) and (D)
(b) (A) and (B)
(c) (A), (B), and (C)
(d) (A), (B), and (D)
Option c – (A), (B), and (C)
When light falls on a smooth polished surface, most of it:
(a) is reflected in the same direction
(b) is reflected in different directions
(c) is scattered
(d) is refracted into the second medium
Option a – is reflected in the same direction
Image formed by reflection from a plane mirror is:
(a) real and inverted
(b) virtual and erect
(c) real and erect
(d) virtual and inverted
Option b – virtual and erect
If an incident ray passes through the focus, the reflected ray will:
(a) pass through the pole
(b) be parallel to the principal axis
(c) retrace its path
(d) pass through the center of curvature
Option b – be parallel to the principal axis
Magnifying power of a concave lens is:
(a) always > 1
(b) always < 1
(c) always = 1
(d) can have any value
Option b – always
The image formed by a convex lens can be:
(a) virtual and magnified
(b) virtual and diminished
(c) virtual and of the same size
(d) virtual image is not formed
Option a – virtual and magnified
A point object is placed at a distance of 20 cm from a convex mirror of focal length 20 cm. The image will form:
(a) at infinity
(b) at focus
(c) at the pole
(d) behind the mirror
Option d – behind the mirror
Focal length of a concave mirror is:
(a) negative
(b) positive
(c) depends on the position of the object
(d) depends on the position of the image
Option a – negative
We covered How to Solve CBSE MCQ Questions Quickly along with some MCQs for CBSE students above in this post for free so that you can practice well for the exam.
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