SSC CGL, CHSL, MTS, GD, SI, JE Physics Previous Year Questions Pdf - 2

Question: 6

Rectifiers are used to convert

(A) High voltage to low voltage

(B) Low voltage to high voltage

(C) A.C. to D.C.

(D) D.C. to A.C.

Question: 7

An ordinary tube light used for lighting purposes contains

(A) Two filaments, fluorescent material and mercury vapour

(B) Fluorescent material and mercury vapour

(C) One filament, reflective material and mercury vapour

(D) Fluorescent material and an inert gas

Question: 8

Distant objects can be seen with the help of

(A) Telescope

(B) Spectroscope

(C) Microscope

(D) Cronometer

Question: 9

The tape of a tape recorder is coated with

(A) Ferromagnetic powder

(B) Mica

(C) Copper sulphate

(D) Zinc oxide

Question: 10

In TV transmission

(A) Sound and video signals are transmitted from different places at the same time

(B) Video signal is transmitted first, followed by sound signal

(C) Sound is transmitted first and then the video sound signal

(D) Sound and video signals are transmitted simultaneously