Electromagnetic Waves Test

Result

Electromagnetic Waves Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

The speed of electromagnetic wave in vacuum depends upon the source of radiation

A
Increases as we move from γ-rays to radio waves

B
Decreases as we move from γ-rays to radio waves

C
Is same for all of them

D
None of these
Question 2
1 / -0

Which of the following radiations has the least wavelength

A
γ -rays

B
β-rays

C
α-rays

D
X-rays
Question 3
1 / -0

The maximum distance upto which TV transmission from a TV tower of height h can be received is proportional to

A
h^1/2

B
h¹

C
h

D
h²
Question 4
1 / -0

In short wave communication, waves of which of the following frequencies will be reflected back by the ionospheric layer having electron density 10¹¹ per m³

A
2.8 MHz

B
10 MHz

C
12 MHz

D
18 MHz
Question 5
1 / -0

Which of the following are not electromagnetic waves

A
Cosmic rays

B
Gamma rays

C
β-rays

D
X-rays
Question 6
1 / -0

Ozone is found in

A
Stratosphere

B
Ionosphere

C
Mesosphere

D
Troposphere
Question 7
1 / -0

The electromagnetic waves travel with a velocity

A
Equal to velocity of sound

B
Equal to velocity of light

C
Less than velocity of light

D
None of these
Question 8
1 / -0

The ozone layer absorbs

A
Infrared radiations

B
Ultraviolet radiations

C
X-rays

D
γ-rays
Question 9
1 / -0

Electromagnetic radiation of highest frequency is

A
Infrared radiations

B
Visible radiation

C
Radio waves

D
γ-rays
Question 10
1 / -0

Which of the following shows green house effect

A
Ultraviolet rays

B
Infrared rays

C
X-rays

D
None of these

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Re-Attempt Weekly Quiz Competition

Electromagnetic Waves Test - 2

Result

Electromagnetic Waves Test - 2

Score

-

Rank

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SHARING IS CARING

Question 1

Increases as we move from γ-rays to radio waves

Decreases as we move from γ-rays to radio waves

Is same for all of them

None of these

Question 2

γ -rays

β-rays

α-rays

X-rays

Question 3

h1/2

h1

h

h2

Question 4

2.8 MHz

10 MHz

12 MHz

18 MHz

Question 5

Cosmic rays

Gamma rays

β-rays

X-rays

Question 6

Stratosphere

Ionosphere

Mesosphere

Troposphere

Question 7

Equal to velocity of sound

Equal to velocity of light

Less than velocity of light

None of these

Question 8

Infrared radiations

Ultraviolet radiations

X-rays

γ-rays

Question 9

Infrared radiations

Visible radiation

Radio waves

γ-rays

Question 10

Ultraviolet rays

Infrared rays

X-rays

None of these

User

Question Analysis

My Perfomance

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h^1/2

h¹

h²