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 convex mirror of radius of curvature 18 cm forms image of the sun. The diameter of the sun subtends an angle of 1° on the earth. Then the diameter of the image is ??

A convex mirror of radius of curvature 18 cm forms image of the sun. The diameter of the sun subtends an angle of 1° on the earth. Then the diameter of the image is ??

Grade:

1 Answers

Arun
25763 Points
3 years ago
Dear Manish
 
As sun is more far from the earth,
Then we take u = infinite
Focal length = 18/2 cm = 9 cm
From the mirror formula
1/v+1/u = 1/f
1/v +1/∞ = 1/9
1/v = 1/9
v = 9 cm
And we also know that
Angle = 1o = π/180
 
Ѳ = d/f
d = Ѳf
d = π/180 * 9
d = π/20 cm
 
 
Regards
Arun (askIITians forum expert)

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