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

Question : 6

Which of the following is not a fundamental unit?

a) metre

b) newton

c) kilogram

d) second

Question : 7

Assertion :
Density is a derived physical quantity.
Reason :
Density cannot be derived from the fundamental physical quantities.

a) If Assertion is correct but Reason is incorrect.

b) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

c) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.

d) If Assertion is incorrect but Reason is correct.

Question : 8 [NDA]

A stone is thrown vertically upwards with an initial velocity u from the top of a tower of height g ${12u^2}/g$ . With what velocity does the stone reach the ground ?

a) 5u

b) u

c) 4u

d) 2$√{6}$u

Question : 9 [UPPCS (Spl)(Mains) 2004]

Which one of the following is not correctly matched?

a) Nautical miles - Unit of naval distance

b) Decibel - Unit of sound intensity

c) Horsepower - Unit of power

d) Celsius - Unit of heat

Question : 10 [UPPCS (Pre) 2005]

Match List-I with List-II and select the correct answer using the code given below the lists.

a) 2 3 4 1

b) 1 2 3 4

c) 3 4 1 2

d) 4 3 1 2