1. What is the longest mountain System that is located in India

2. What part of the Electromagnetic wave is encircled?

3. Which of the following EM waves has the highest frequency?

4. Which of the following EM waves has the longest wavelength?

5. What unit is used to measure the Wavelength?

6. What unit is used to measure the Wave Frequency?

7. What unit is used to measure Wave Speed?

8. From the formula of wave speed, what does the letter "C" item stands for?