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Current Electricity

Question

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What is the ratio of speed of infrared rays and ultraviolet rays in vacuum?

Solution

The velocity of all light waves in vacuum is same (c= 3 $\times$ 10⁸ m/s ). Therefore, the ratio of speed of infrared and ultraviolet rays is 1:1 .

Some More Questions From Current Electricity Chapter

What conclusion can you draw from the following observations on a resistor made of alloy manganin?

Current A

Voltage V

Current A

Voltage V

0.2

0.4

0.6

0.8

1.0

2.0

3.94

7.87

11.8

15.7

19.7

39.4

3.0

4.0

5.0

6.0

7.0

8.0

59.2

78.8

98.6

118.5

138.2

158.0

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