Physics related questions and answers

DoThe Best
By DoThe Best October 7, 2015 13:55

1. A woman’s voice is shriller than man’s voice due to

A. lower frequency
B. higher frequency
C. weak vocal chords
D. higher amplitude


2. Recording of sound on tapes was first invented by

A. Fleming
B. Ampere
C. Poulsen
D. Becquerrel


3. Which one of the following would be most powerful electro magnet?

A. soft iron
B. steel
C. copper
D. air


4. Production of beats is a result of the phenomenon of

A. reflection
B. resonance
C. interference
D. superposition


5. The principle of Dynamo was discovered by

A. Max Planck
B. Michael Faraday
C. Albert Einstein
D. Sir Humphrey Davy


6. Magnetism at the centre of a bar magnet is

A. maximum
B. minimum
C. zero
D. all the above


7. What do we call a substance which is repelled by a magnet?

A. paramagnetic
B. diamagnetic
C. ferromagentic
D. none of these


8. A device used for measuring the depth of the sea is called

A. manometer
B. fathometer
C. altimeter
D. hydrometer


9. The source of sun’s radium energy is

A. nuclear fusion
B. nuclear fission
C. magnetic traps
D. cosmic radiations


DoThe Best
By DoThe Best October 7, 2015 13:55
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