Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Consider the following statements:

1. Microwaves are used for Radar applications.

2. Radio waves can only be used for one way communications limiting their applications.

3. UV light is a component of natural sunlight.

Which of the statements given above are correct?

• A. 1, 3 only
• B. 2, 3 only
• C. 1, 2 only
• D. 1, 2 and 3

Answer 1

The correct option is A 1, 3 only

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Sunlight has 95% UV-A and arounnd 5% of UV-B.

Radio waves can be used for two way communications.

Microwaves are used not only in Radar applications but also in heating and industrial applications.