Electromagnetic Waves Test

Result

Electromagnetic Waves Test - 11

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

A

B

C

D
Question 2
4 / -1

Light with an energy flux of w/m³ or Wm^–3 falls on a non-reflecting surface at normal to surface. If the surface has an area of 20m². The average force exerted on the surface during 30 minutes is ______________

A

B

C

D
Question 3
4 / -1

Energy density of an electromagnetic wave of intensity 0.02 Wm^–2 is ________________

A

B

C

D
None of the above
Question 4
4 / -1

The waves used in communication are generally called

A
γ rays

B
α rays

C
Microwaves

D
Radiowaves
Question 5
4 / -1

A
0

B

C

D
Question 6
4 / -1

A

B

C

D
Question 7
4 / -1

The electric and magnetic field of an electromagnetic wave are

A
in phase and perpendicular to each other

B
in phase and parallel to each other

C
in opposite phase and perpendicular to each other

D
in opposite phase and parallel to each other
Question 8
4 / -1

The direction of electric and magnetic vector for an electromagnetic wave travelling along X-axis are shown in fig. A and B then

A
A is correct, B is wrong

B
B is correct, A is wrong

C
Both A and B are correct

D
Both A and B are wrong
Question 9
4 / -1

A

B

C

D
Question 10
4 / -1

A

B

C

D