Question

A student obtained a sharp image of a candle fiamme placed at the distant end of the
laboratory table on a screen using a concave mitor to determine is focal length
The teacher suggested him to focus a astant buildng about 1 km far from the
laboratory, for getting more comect value of the focal length in order to focus the
distant building on the same screen the student should slightly move the
a) mimar away from the soon
©) screen towards the memo
b) sarean away from the mirror
d) screen towards the bulding​

Answer 1

Explanation:

option c is correct

if he wants image of building then he must move screen towards the mirror

pls mark me a brainlist pls