Physics, asked by Damini1111, 1 year ago

A concave mirror is made by cutting a hollow thin glass sphere of radius 30cm. Find it's focal length ........
Guys Pls help......

Answers

Answered by diviii

44

Focal length =1/2 of radius
Focal length =30/2=15

Answered by Saifßàã

34

hey
f=r/2
f=30/2
f=15cm is your answer

Previous Question

Next Question

Similar questions

Social Sciences, 8 months ago

. We study history through various * (1 Point) a. Pots O b. tools c. building d. Table...

English, 8 months ago

raitu thana jevithani endhuku daraposthunadu...

Science, 8 months ago

short note on sodium (tell me some characteristics and properties of sodium metal) at least 15 points...

English, 1 year ago

change gender :- shepherd ----- bridegroom ---- Duke ------...

Social Sciences, 1 year ago

different between renewable and non-renewable resources give the two factories that determine soil fertility?

Physics, 1 year ago

Mass of a body is 25 kg what is his weights in Newton on earth the body is carried to a planet whose mass is 2 times then the mass of the earth radius is half that of the earth what will be the mass and the weight of a body on that planet...

History, 1 year ago

How did the economic policy of british destroy the Indian industry...

Math, 1 year ago

The length of a parallelogram is 2.5 m longer than its adjacent side. If the perimeter of the parallelogram is 51 m, find the measure of all its sides...