Skip to content
Sign In
Sign Up

Todaysprint

TwitterFacebookGithubInstagram
Skip to content
Sign In
Sign Up

Todaysprint

TwitterFacebookGithubInstagram

Physics mcq questions and answers for competitive exams

Ramya_naidu

Posted on

Physics mcq questions and answers for competitive exams UPSC SSC , SSC CGL, SSC CHSL, upsc Civils , Entrance exams Online test practice online free Quiz, mock practice online
91.
Growth of the baby in the uterus is found using

a
X-rays
b
Ultra sound
c
Gamma rays
d
Ultra Violet rays
View Answer
Discuss
92.
Persistence of vision is the principle behind?

a
Cinema
b
Camera
c
Periscope
d
Spectroscope
View Answer
Discuss
93.
Minimum number of unequal vectors which can give zero resultant are

a
zero
b
one
c
two
d
three
View Answer
Discuss
94.
The rotational effect of a force on a body about an axis of rotation is described in terms of

a
Moment of force
b
Centre of gravity
c
Centripetal force
d
Centrifugal force
View Answer
Discuss
95.
A telescope and microscope differ in that

a
Telescope has objective of large focal length and eyepiece of smaller focal lengths
b
Telescope's eyepiece with longer focal lengths that the oblective
c
Both are different instruments
d
None of these
View Answer
Discuss
96.
Point A is at a lower electrical potential than point(b) An electron between them on the line joining them will

a
remain at rest
b
move towards A
c
move towards B
d
move at right angles to the line joining A and B
View Answer
Discuss
97.
When water is heated from 0◦ Celsius to 100◦Celsius, the volume of water

a
Increase gradually
b
Degrease gradually
c
First increase, then decrease
d
First decrease, then increase
View Answer
Discuss
98.
Which among the following is the best conductor of electricity?

a
Lead
b
Gold
c
Silver
d
Copper
View Answer
Discuss
99.
What is refractive index?

a
it is defined as the product of speed of light in medium and in vacuum
b
it is defined as the ratio of speed of light in vacuum to the speed of light in the medium
c
it is defined as the ratio of speed of light in the medium to the speed of light in vacuum
d
None of above
View Answer
Discuss
100.
In which of the following industries is mica as a raw material?

a
Cement
b
Electrical
c
Iron and Steel
d
Glass and Pottery
View Answer
Discuss
101.
Sound of frequency below 20 Hz is called

a
infrasonic
b
ultrasonic
c
supersonics
d
audio sounds
View Answer
Discuss
102.
Force of attraction between the molecules of different substances is called

a
Adhesive force
b
Cohensive force
c
Surface tension
d
None of above
View Answer
Discuss
103.
The force which opposes the relative motion between different layers of liquid or gases is called

a
Viscous Force
b
Critical Velocity
c
Streamline Flow
d
Terminal Velocity
View Answer
Discuss
104.
The ozone layer protects us from

a
Radio waves
b
Visual radiation
c
Ultra violet rays
d
Infrared radiation
View Answer
Discuss
105.
Sudden fall in barometer is indication of

a
Tide
b
Rain
c
Storm
d
Clear weather
View Answer
Discuss
Rate This:
NaN / 5 - 1 votes
Profile photo for Dasaradhan Gajendra