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Current Electricity

Question

Wired Faculty App

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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