Physics · Exercise 1 of 3

Physics Physics - Section 1

79 questions
Page 1 of 8
Answers explained

Read the concepts

Your progressThis exercise · saved in this browser

Attempted: 0/79
Correct: 0
Accuracy: –

Continue practice

OverviewExercise at a glance

Subject: General Knowledge
Topic: Physics
Exercise: Physics - Section 1
Questions: 79

Exercise list3 exercises in Physics

Study materialRevise before you answer

Quick tipsPractise smarter

Solve it yourself before opening the answer
Use the workspace for rough steps
Bookmark questions to revise later
Aim for under a minute per question

0Attempted

0Correct

0Wrong

Question 1

Identify the vector quantity from the following

A Heat

B Angular momentum

C Time

D Work

Discuss in Forum

Question 2

Large astronomical telescopes always use as objective

A lens

B mirror

C combinations of lenses

D None of the above

Discuss in Forum

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

Discuss in Forum

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

Discuss in Forum

Question 5

Natural radioactivity was discovered by

A Marie Curie

B Ernest Rutherfor

C Henri Becquerel

D Enrico Fermi

Discuss in Forum

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

Discuss in Forum

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

Discuss in Forum

Question 8

Mach number is used in connection with the speed of

A sound

B aircraft

C spacecraft

D ships

Discuss in Forum

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

Discuss in Forum

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

Discuss in Forum

Ready to test your General Knowledge?

Timed online tests with instant scores and explanations.

General Knowledge test