PG TRB Physics Study Materials 2020 - 2021 - 3

Question: 11

The least count of a metre scale is

(A) 1 m

(B) 1 cm

(C) 1 mm

(D) 0.01 mm

Question: 12

An example of scalar quantity is

(A) Acceleration

(B) Speed

(C) Momentum

(D) Displacement

Question: 13

In which of the following cases lies the broadcast band of FM?

(A) HF

(B) SHF

(C) UHF

(D) VHF

Question: 14

When one nucleus of uranium undergoes fission ____ energy released.

(A) 200 MeV

(B) 150 MeV

(C) 100 MeV

(D) 50 MeV

Question: 15

The substances appearing at the cathode are said to be

(A) electropositive

(B) neutral

(C) positive

(D) electronegative