Question

1)If an object is kept in front of convex mirror the image will be
a) Virtual,magnified
b) virtual, diminished
c) virtual,of the same size
d)real, diminished
2) unit of coefficient of surfaces expansion depends
a) only on the unit of area
b)only on the unit of temperature
c)only on the units of temperature and time.
3)when a convex lens forms mirror a virtual image of magnification m then
a) m>1 b) m=1 c)m<1 d) m less than equal to 1​

Answer 1

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Explanation:

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