Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

A ray of light is incident at an angle of 70 degree into a medium having refractive index u. the reflected and the refracted rays are found to suffer equal deviations in opposite direction. then u equals to- tan70 degree 2sin70 degree cosec70 degree none of these

A ray of light is incident at an angle of 70 degree into a medium having refractive index u. the reflected and the refracted rays are found to suffer equal deviations in opposite direction. then u equals to-
  1. tan70 degree
  2. 2sin70 degree
  3. cosec70 degree
  4. none of these

Grade:12th pass

1 Answers

Ajai
13 Points
2 years ago
Answer is  2sin70°
Hint : draw ray diagram label angles and use geometry
Refractive index = sin70° / sinr
= Sin 70° / sin 30°  = 2sin70°

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free