Ok, as you want the question paper of Combined Defence Services CDS exam so here I am providing you.

CDS exam question paper

1. The upper and lower portions in common
type of bi-focal lenses are respectively
(a) concave and convex
(b). con~ex and concave
(c) both concave of different focal
lengths
(d) both convex of different focal
Lengths

2. Tungsten is used for the construction of
filament in electric bulb because of its
(a) high speeific resistance
(b) low specific resistance
(c) high light emitting power
(d) high melting point

3. Inactive Nitrogen and Argon gases are
usually used in electric bulbs in order to
(a) increase the intensity of light
emitted
(b) increase the life of the filament
(c) make the emitted light coloured
(d) make the production of bulb
Economical

4. In the phenomenon of dispersion of light,
the light wave of shortest wav~length is
(a) accelerated and refracted the most
(b) slowed down and "refracted the
most
(c) accelerated and refracted the least
(d) slowed down and refracted the
Least

5. An oscilloscope is an instrument which
allows us to see waves produced by
(a) visible light
(b) X"rays
(c) sound
(d) Gamma• rays

6. The distribution of electrons into different
'orbits of an atom, as suggested by
Bohr; is
(a) 2 electrons il'l the K-orbit, '6 electrons
in the L-orbit, 18 electrons in
theM-orbit
(b) 2 electrons in the K-orbit, 8 electrons
in the L-orbit, 32 electrons in
theM-orbit
(c) 2 electrons in the K-orbit, 8 electrons
in the L-orbit, 18 electrons in
theM-orbit
(d) 2 electrons in the K-orbit, 8 electrons
in the L-orbit, 16 electrons in
theM-orbit
CDS exam question paper





For more questions here is the attachment..........................

Attached Files

CDS exam question paper.pdf (1.60 MB, 89 views)