Question

Fill in the blanks:
1. The formula Refractive index is_______

2. n21=________

3. Snell's law_________

4. At_____the incident ray do not bent.

5. The formula for relative refractive index is______

6. The speed of light in water is____

7. The units of 'G' is
/ mass__________

8. Acceleration is________/mass

9. 8 kg body weights _______ Newton on Earth

10. If there is no gravity, then the weight of 10 kg object is_______​

Answer 1

Answer:

speed of light in air / speed of light in glass

Answer 2

Answer:

1) n=v₁/v₂

2)n21= Speed of Light in 1st medium/ Speed of light in 2nd medium

3)Snell's Law: The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant for a given pair of media and for a given wavelength of light.

sini/sinr=n

4) 90°

5) n = c/v.

6) 225,000 km/s

7) Newtons kg

8) force/mass

9) 80 N (g=10N)

10) W=m×g=10×9.8=98N