Online Physics MCQs Test Set 1

Multiple choice questions (MCQ) related to higher physics (B.Sc. + M.Sc.). The first law of Thermodynamics is based on (A) Conservation of energy (B)

The following (Multiple Choice Questions-1) provides multiple choice questions (MCQ) related to higher physics (B.Sc. + M.Sc.). You need to read all the answers given and click on the correct answer. If you are not sure about the answer, you can check the answer using the 'Show Answer' button. Thankyou! best of luck.

Physics quiz-1

1. The first law of Thermodynamics is based on :




... Answer is (A)
The first law of thermodynamics is based on conservation of energy.

 
 
2. The process, in which there is no exchange of heat is called :




... Answer is (D)
The process, in which there is no exchange of heat is called adiabatic process.

 
 
3. The internal energy of an ideal gas depends upon :




... Answer is (C)
The internal energy of an ideal gas depends upon temperature only.

 
 
4. In an isothermal expansion, the internal energy of an ideal gas




... Answer is (C)
In an isothermal expansion the internal energy of an ideal gas remains constant.

 
 
5. The efficiency of carnot engine working between ice point and steam point will be




... Answer is (B)
ice point=0ᵒC=273K and steam point=100ᵒC=373K

 
 
6. When heat is added to a system, its entropy




... Answer is (A)
When heat is added to a system, its entropy increases.

 
 
7. By increasing pressure, the melting point of ice




... Answer is (B)
By increasing pressure the melting point of ice decreases.

 
 
8. In which process, heat transmission is fastest




... Answer is (C)
Heat transmission is fastest in radiation process.

 
 
9. Wein's radiation law holds for :




... Answer is (B)
Wein's radiation law holds for smaller wavelength.

 
 
10. Planck's law of radiation holds for :




... Answer is (C)
Planck's law of radiation holds for all wavelength.

 
 
11. Rayleigh Jean's law holds for :




... Answer is (A)
Rayleigh Jean's law holds for longer wavelength.

 
 
12. Rice takes longest time to cook :




... Answer is (C)
At the mount, boiling point of water decreases due to decrease in pressure.

 
 
13. If a unit charge is taken from one point to another over an equipotential surface, then




... Answer is (D)
At equipotential surgace, all points have equal voltage so, work done will be zero.

 
 
14. Two parallel wires carrying currents in opposite directions




... Answer is (A)
Two parallel wires carrying currents in opposite directions repel each other.

 
 
15. The conductivity of an ideal dielectric is




... Answer is (A)
The conductivity of an ideal dielectric is zero.

 
 
16. In a non uniform field, if a substance tends to move from the stronger to weaker parts of the field, then it is




... Answer is (B)
In a non uniform field, if a substance tends to move from the stronger to weaker parts of the field, then it is diamagnetic.

 
 
17. The electric current in a metallic conductor is due to the flow of




... Answer is (A)
The electric current in a metallic conductor is due to the flow of free electrons only.

 
 
18. The specific resistance of a wire depends upon




... Answer is (D)
The specific resistance of a wire depends upon its material.

 
 
19. The resistance of a wire is doubled if




... Answer is (C)
The resistance of a wire is doubled if its radius is halved and length is doubled.

 
 
20. A transformer converts




... Answer is (C)
A transformer converts low AC voltage into high AC voltage and vice versa.

 
 
21. Electric dipole moment of a non-polar molecule is




... Answer is (A)
Electric dipole moment of a non-polar molecule is zero.

 
 
22. Which of the following does not change with temperature?




... Answer is (B)
NA

 
 
23. Which of the following is not related with resonance?




... Answer is (D)
NA

 
 
24. How is ammeter connected in electric circuit?




... Answer is (B)
NA

 
 
25. If the length of a simple pendulum is halved then its period of oscillation is




... Answer is (D)
NA

Read also

Post a Comment

Oops!
It seems there is something wrong with your internet connection. Please connect to the internet and start browsing again.
AdBlock Detected!
We have detected that you are using adblocking plugin in your browser.
The revenue we earn by the advertisements is used to manage this website, we request you to whitelist our website in your adblocking plugin.