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Following are the representative wavelengths in the infrared, ultra-violet  and X-ray regions of the electromagnetic spectrum : 1.0  10-6 m, 1.0 10-8 m and 1.0 10-10 m.

Which of the following statements is false?

(a)

The corresponding frequencies of X-ray, UV and IR  are in the ratio of 104: 102 :1

(b)

The corresponding energies of X-ray, UV and IR are in the ratio of 1: 10-2: 104

(c)

The corresponding velocities of X-ray, UV and IR are  in the ratio of 1: 102 :104

(d)

X-rays, UV and IR waves are electromagnetic waves. These are transverse waves



Question ID - 103442 | SaraNextGen Top Answer

Following are the representative wavelengths in the infrared, ultra-violet  and X-ray regions of the electromagnetic spectrum : 1.0  10-6 m, 1.0 10-8 m and 1.0 10-10 m.

Which of the following statements is false?

(a)

The corresponding frequencies of X-ray, UV and IR  are in the ratio of 104: 102 :1

(b)

The corresponding energies of X-ray, UV and IR are in the ratio of 1: 10-2: 104

(c)

The corresponding velocities of X-ray, UV and IR are  in the ratio of 1: 102 :104

(d)

X-rays, UV and IR waves are electromagnetic waves. These are transverse waves

1 Answer
127 votes
Answer Key / Explanation : (c) -

The corresponding velocities of X-ray, UV and IR are  in the ratio of 1: 102 :104

127 votes


127