RGJC Physics. We covered all the RGJC Physics MCQs in this post for free so that you can practice well for the exam.
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RGJC Physics Objective for Students
Which one of the following statements is not correct?
(a) The longest wavelength of light visible to the human eye is about 700 nm.
(b) The shortest wavelength of light visible to the human eye is about 400 nm.
(c) The wavelength of gamma rays is longer than that of X-rays.
(d) The ability of a telescope to form separable images of close objects is called its resolving power.
Option c – The wavelength of gamma rays is longer than that of X-rays
Choose the correct statement.
(a) The wavelength of red light is less than violet light.
(b) The wavelength of red light is more than violet light.
(c) The wavelength of violet light is more than green light.
(d) The wavelength of violet light is more than yellow light.
Option b – The wavelength of red light is more than violet light
Distant objects can be seen with the help of
(a) chronometer
(b) telescope
(c) microscope
(d) spectroscope
Option b – telescope
Which one of the following statements is correct about the magnification of an optical microscope?
(a) Magnification increases with the increase in the focal length of the eyepiece.
(b) Magnification increases with the increase in the focal length of the objective.
(c) Magnification does not depend upon the focal length of the eyepiece.
(d) Magnification decreases with the increase in the focal length of the eyepiece.
Option d – Magnification decreases with the increase in the focal length of the eyepiece
The focal length of the objective lens of a telescope is 50 cm. If the magnification of the telescope is 25, then the focal length of the eyepiece is
(a) 12.5 cm
(b) 5 cm
(c) 2 cm
(d) 10 cm
Option c – 2 cm
The ability to distinguish two closely placed objects is
(a) Resolving power
(b) Video power
(c) Distinguish power
(d) Magnifying power
Option a – Resolving power
We covered all the rgjc physics mcqs above in this post for free so that you can practice well for the exam.
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Also, check out:
- NCERT Solutions for Class 11 Physics Chapter 5
- MSC Physics Previous Question Papers
- Lucent Physics Book
