General Knowledge

Physics - Section 1

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Physics - Section 1

Practice and master this topic with our carefully crafted questions.

10 Questions
15 Minutes
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Question 1
Identify the vector quantity from the following

A
Heat
B
Angular momentum
C
Time
D
Work
Correct Answer: Option B

No answer description available for this question.

Question 2
Large astronomical telescopes always use as objective

A
lens
B
mirror
C
combinations of lenses
D
None of the above
Correct Answer: Option C

No answer description available for this question.

Question 3
One should not connect a number of electrical appliances to the same power socket because

A
this can damage the appliances due to overloading
B
this can damage the domestic wiring due to overloading
C
this can damage the electrical meter
D
the appliance will not get full voltage
Correct Answer: Option B

No answer description available for this question.

Question 4
Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I. Diffusion Ii. Refraction III. Internal reflection

A
I, II and III
B
I and II
C
II and III
D
I and III
Correct Answer: Option C

No answer description available for this question.

Question 5
Natural radioactivity was discovered by

A
Marie Curie
B
Ernest Rutherfor
C
Henri Becquerel
D
Enrico Fermi
Correct Answer: Option C

No answer description available for this question.

Question 6
Planets are

A
luminous heavenly bodies revolving around a star
B
non-luminous heavenly bodies
C
luminous heavenly bodies that twinkle
D
luminous heavenly bodies that do not twinkle
Correct Answer: Option B

No answer description available for this question.

Question 7
Supersonic plane fly with the speed

A
less than the speed of sound
B
of sound
C
greater than the speed of sound
D
of light
Correct Answer: Option C

No answer description available for this question.

Question 8
Mach number is used in connection with the speed of

A
sound
B
aircraft
C
spacecraft
D
ships
Correct Answer: Option B

No answer description available for this question.

Question 9
On a stationary sail boat, air is blown from a fan attached to the boat. The boat

A
moves in opposite direction in which the air is blown
B
does not move
C
moves in the same direction in which air blows
D
spins around
Correct Answer: Option B

No answer description available for this question.

Question 10
Rainbow is due to

A
absorption of sunlight in minute water droplets
B
diffusion of sunlight through water droplets
C
ionisation of water deposits
D
refraction and reflection of sunlight by water droplets
Correct Answer: Option D

No answer description available for this question.

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