Daily Physics Quiz for Police SI : 22/04/2019

Q.11) A micron is equivalent to

a) 1/100 mm

b) 1/100 cm

c) 1/1000 cm

*d) 1/1000 mm

2) The temperature at which centigrade and Fahrenheit scales give the same reading

a) 400 C

b) 400 R

*c) -400 C

d) 400 F

3) Why do we prefer white clothes in summer?

a) they are poor absorbers and poor emitters

b) they are good absorbers and poor emitters

*c) they are poor absorbers and good emitters

d) none of these

4) A bob executes simple harmonic motion. Which value is maximum when the bob is in the mean position?

a) time period

b) mass of the particle

c) amplitude

*d) velocity

5) The scientist who discovered the relation between electricity and magnetic effects is

*a) Oersted

b) Ampere

c) Laplace

d) Ohm

6) For a transversely vibrating string the frequency of vibration is directly proportional to

a) its length

b) its linear density

*c) the load

d) none of these

7) The exclusion principle was proposed by

a) Pascal

*b) Pauli

c) Planck

d) Einstein

8) The momentum of a body of mass m moving with constant velocity v is

a) mv2

b) m2v

*c) mv

d) m/v

9) The period of oscillation of a simple pendulum

a) decreases with length

b) is independent of length

*c) increases with length

d) increases with amplitude

10) The weight of the body at the centre of the earth is

*a) zero

b) infinite

c) slightly less than at the poles

d) slightly less than at the equator.