Physics Part 1 Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Physics. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - Which among the following correctly defines the ‘nuclear force?’
Answer : D
Explanation
Nuclear force is the force between protons and neutrons.
Q 2 - A tube light transforms …
A - Solar energy into electrical energy
B - Electrical energy into light energy
Answer : B
Explanation
N/A
Q 3 - The sound frequency lesser than the audible range i.e. (20 Hz) is known as …
Answer : B
Explanation
Anything less than the frequencies of audible sound is known as infrasonic.
Q 4 - -400 Fahrenheit is equal to …
Answer : B
Explanation
N/A
Q 5 - The exchange of thermal energy between two physical systems is known as …
Answer : A
Explanation
The rate of heat transfer depends on the temperature differences between two bodies and also on the properties of intervening medium.
Q 6 - Consider the following statements:
1. A thermocouple consists of two wire legs, which are made from different metals.
2. A thermocouple is a sensor, which is used to measure temperature.
Choose the correct answer from the codes given below:
Answer : C
Explanation
The wire legs of a thermocouple are welded together at one end, which creates a junction where temperature is measured.
Q 7 - Speed of sound is maximum in …
Answer : B
Explanation
Speed of sound in iron is 5,120 m/s.
Q 8 - 181. ………………………. First said that atom is indivisible.
Answer : B
Explanation
John Dalton was an English chemist, physicist, and meteorologist who had developed the atomic theory.
Q 9 - 1 light year =
A - The distance that light travels in vacuum in one Julian year
B - The distance that light travels in vacuum in one Julian month
C - The distance that light travels in vacuum in one Julian week
D - The distance that light travels in vacuum in one Julian day
Answer : A
Explanation
N/A
Q 10 - Which among the following colors has the maximum refractive index?
Answer : C
Explanation
N/A
Q 11 - Pyrometer is used to …
A - Measure temperature of Sun
B - Measure temperature of Moon
Answer : A
Explanation
Pyrometer is an instrument used to measure distant temperature.
Q 12 - What is the frequency range of VHF?
Answer : D
Explanation
VHF stands for Very High Frequency.
Q 13 - Consider the following statements:
1. Comparatively, the speed of sound is high in humid air.
2. Comparatively, the speed of sound is less in dry air.
Choose the correct answer from the codes given below:
Answer : C
Explanation
Speed of sound varies because of the density difference.
Answer : A
Explanation
N/A
Q 15 - Consider the following statements:
1. The radioactivity element ‘radium’ was discovered by Robert Pierre and his wife Madam Curie.
2. Rutherford first discovered the rays emitted by radioactivity.
Choose the correct answer from the codes given below:
Answer : C
Explanation
N/A
Answer : A
Explanation
Sir Frank Whittle had first invented the jet engine.
Q 17 - Cardiograph measures …
Answer : A
Explanation
Cardiograph is an instrument that measures heartbeat.
Q 18 - Consider the following statements:
1. According to quantum theory, light is considered as a bundle of energy called as photon.
2. Speed of light is first measured by Roemer.
Choose the correct answer from the codes given below:
Answer : C
Explanation
Roemer first measured the speed of light in 1678.
Q 19 - Who first invented ‘Electric Motor (DC)?’
Answer : B
Explanation
The first commutator DC electric motor capable of turning machinery was invented in 1832 by the British scientist William Sturgeon.
Q 20 - An electric motor transforms …
A - Electrical energy into mechanical energy
B - Electrical energy into light energy
Answer : A
Explanation
N/A
