Goyal Brothers Prakashan Physics Class 10 Solutions. We covered all the Goyal Brothers Prakashan Physics Class 10 Solutions pdf download in this post for free so that you can practice well for the exam.
Install our MCQTUBE Android app from the Google Play Store and prepare for any competitive government exams for free.
These types of competitive MCQs appear in exams like MHT-CET, NEET, JEE (Mains), 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.
Related Posts:
- MCQ Questions for Class 10 ICSE Computer
- Class 10 Science Chapter 2 MCQ Online Test
- Soil Resources Class 10 ICSE MCQ
Physics Class 10 Trivia for Students
Two heat engines A and B have their sources at 327 °C and 227 °C and sinks at 127 °C and 27 °C respectively. The ratio of their efficiencies is :
(A) 1 : 3
(B) 2 : 5
(C) 5 : 6
(D) 3 : 5
Option c – 5 : 6
An heat engine absorbs Q of heat from a reservoir at an absolute temperature T and rejects heat to a sink at a temperature of T/3. The amount of heat rejected is :
(A) Q/4
(B) Q/3
(C) Q/2
(D) 2Q/3
Option b – Q/3
A heat engine working between 300 K and 600 K has work output of 820 J per cycle. What is amount of heat energy supplied to the engine from source per cycle ?
(A) 1000 J/cycle
(B) 1600 J/cycle
(C) 1800 J/cycle
(D) 2000 J/cycle
Option b – 1600 J/cycle
In an ideal refrigerator, heat from inside at 277 K is transferred to a room at 300 K. How much joules of heat will be delivered to the room from each joule of electrical energy consumed?
(A) 1 J
(B) 12 J
(C) 13 J
(D) 25 J
Option c – 13 J
An ideal refrigerator is used to transfer heat from a freezer at -23 °C to the surroundings at 27 °C. Its coefficient of performance is :
(A) 2.5
(B) 5
(C) 7.5
(D) 10
Option b – 5
Equal volumes of two liquids are cooled under identical circumstance from 60 °C to 50 °C and times taken by then are 324 and 810 seconds respectively. If ratio of their specific heat is 3 : 4 then the ratio of their densities will be (W may be neglected) :
(A) 0.53 : 1
(B) 0.53 : 2
(C) 0.53 : 3
(D) 0.53 : 4
Option a – 0.53 : 1
A solid copper sphere of radius R and a hollow copper sphere of equal internal and external radius R are heated to same temperature and are then allowed to cool in same atmosphere. Which of the following statements is correct?
(A) Both the spheres will cool simultaneously
(B) The temperatures of two spheres will be same
(C) The rate of cooling of solid sphere will be more than that of hollow sphere
(D) The rate of fall of temperature of hollow sphere will be more than that of solid sphere
Option d – The rate of fall of temperature of hollow sphere will be more than that of solid sphere
Initial temperatures of metallic sphere and disc, of same radius and same nature, are same. The ratio of their rates of cooling will be :
(A) 1 : 4
(B) 4 : 1
(C) 1 : 2
(D) 2 : 1
Option d – 2 : 1
In the expression for Boyle’s law, the product ‘PV’ has dimensions of :
(A) force
(B) impulse
(C) energy
(D) momentum
Option c – energy
We covered all the goyal brothers prakashan physics class 10 solutions above in this post for free so that you can practice well for the exam.
Check out the latest MCQ content by visiting our mcqtube website homepage.
Also, check out:
