solve the question an object is at a distance of 10cm from pole of a concave mirror .its image is formed at 6cm from ots pole .calculate focal length
Answers
Answered by
1
u= -10, v= 6 cm
1/f=1v+1/u
1/f=1/-10+1/6
1/f=-3+5/30
1/f=2/30
f= 15
focal length= 15
1/f=1v+1/u
1/f=1/-10+1/6
1/f=-3+5/30
1/f=2/30
f= 15
focal length= 15
sneha198:
see the method
bt in the question it is not mention that image is real then how v is positive
method i know there is confusion on v will be positive or negative
focal length will be negative
because in cocave mirror focal length is negative
yes it is for sure bt focal length will be - in both cases either v+ or v-
yes
no no no i solved by my own
v will be negative
ya
Similar questions