Quiz about Characteristics of EM Waves (Wavelength, Frequency and Energy)

Question 1

This type of wave was discovered by famous astronomer Sir Frederick William Herschel and has a range of $$7 imes10^{-7}\ m$$ to $$1 imes10^{-3}\ m$$ .

Accepted Answer

Infrared rays

Answer

Microwaves

Answer

Radio waves

Answer

Visible light

Question 2

Which of the following electromagnetic waves has the least wavelength range?

Accepted Answer

X-rays

Answer

Infrared rays

Answer

Visible light

Answer

Ultraviolet rays

Question 3

Which among the following EM waves has the longest wavelength?

Accepted Answer

Infrared rays

Answer

Ultraviolet

Answer

Visible light

Answer

X-rays

Question 4

Which electromagnetic wave can travel the farthest distances because it has a wavelength range of greater than $$1 imes10^{-1}\ m$$ ?

Accepted Answer

Radio waves

Answer

Gamma rays

Answer

Microwaves

Answer

X-rays

Question 5

The wavelength of microwaves ranges from $$1 imes10^{-1}\ m$$ to $$1 imes10^{-3}\ m$$ . Which of the following has size comparable to the wavelength of microwave?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 6

What is the frequency range of infrared radiation?

Accepted Answer

$$3 imes10^{11}\ Hz-4 imes10^{14}\ Hz$$

Answer

$$3 imes10^9\ Hz-3 imes10^{11}\ Hz$$

Answer

$$3 imes10^{14}\ Hz-3 imes10^{15}\ Hz$$

Answer

$$3 imes10^{16}\ Hz-3 imes10^{19}\ Hz$$

Question 7

A visible light has a frequency of $$6.3 imes10^{14}\ Hz$$ . What is the color of this light?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 8

Which among the following EM waves has the highest frequency among others?

Accepted Answer

X-rays

Answer

Infrared rays

Answer

Microwaves

Answer

Ultraviolet rays

Question 9

Which of the following EM waves has the LEAST amount of energy?

Accepted Answer

Radiowaves

Answer

Gamma rays

Answer

Microwaves

Answer

X-rays

Question 10

EM waves travel in vacuum at a constant speed of _____.

Accepted Answer

$$3 imes10^8\ \frac{m}{s}$$

Answer

$$3 imes10^8\ \frac{cm}{s}$$

Answer

$$3 imes10^{10}\ \frac{m}{s}$$

Answer

$$3 imes10^5\ \frac{cm}{s}$$

Question 11

EM waves are created with changing _____ field and _____ field.

Accepted Answer

electric

Accepted Answer

magnetic

Answer

gravitational

Answer

atomic

Question 12

Which of the following statements is CORRECT?

Accepted Answer

Gamma ray has the highest frequency and the highest energy.

Answer

Gamma ray has the highest frequency but has the least energy.

Answer

Radio wave has the highest frequency and the highest energy.

Answer

Radio wave has the lowest frequency but has the highest energy.

Characteristics of EM Waves (Wavelength, Frequency and Energy)

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