measurement and SI units - Category wise Question and Answer Practice Test with Solutions

Question : 16

An iron ball and a wooden ball of same radius are released from a height ‘h’ in vacuum. Which of the two balls would take more time to reach the ground?

a) Wooden ball

b) Iron ball

c) Both would take same time

d) None of these

Question : 17

Among the following the derived quantity is

a) density

b) mass

c) length

d) time

Question : 18 [PCS (Pre) 2008]

What is the unit of atmospheric pressure?

a) Joule

b) Bar

c) Knot

d) Ohm

Question : 19 [SSC CGL]

'Farad' is the unit of

a) capacitance

b) resistance

c) conductance

d) inductance

Question : 20 [NDA]

A swinging pendulum has its maximum acceleration at

a) every point on the swing

b) the bottom of the swing

c) the two extremities of the swing

d) no particular portion of the pendulum