param ahuja
from
m.p.s, Ajmer
In a dark night, you have only one light source in your room. But you have two mirrors, one is concave and another is convex. Which mirror will you use to make the room lighted?
A Concave mirror, because it converges the beam of light.
B Concave mirror, because it diverges the beam of light.
C Convex mirror, because it diverges the beam of light.
D Either concave or convex depends on the position of source.
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Class : Class 4
yes according to me also the answer is c but in nso practice papers it is written as d
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Class : Class 9
the answer should be B because cocave lens is a diverging lens which will diverge the light to all parts of the room