TRB Physics Previous Year Question Papers Pdf - 4

Question: 16

The incident ray, the refracted ray and the normal lie

(A) Not in different planes

(B) Not on the same plane

(C) In different planes

(D) In the same plane

Question: 17

Transverse wave is characterised with

(A) nodes and antinodes

(B) compressions and rare factions

(C) crests and troughs

(D) none of these

Question: 18

Candela is the unit of

(A) Luminous flux

(B) Luminous effect

(C) Luminous intensity

(D) Luminous pressure

Question: 19

Which of the following quantities is scalar?

(A) Electric potential

(B) Electric field

(C) Dipole moment

(D) Electric force

Question: 20

Which one of the following will produce and detect ultrasonics?

(A) Bat

(B) Crow

(C) Sparrow

(D) Eagle