Question

1) Unit of coefficient of surface expansion depends.
a) only on the unit of area
b) only on the unit of temperature
c)on the units of area and temperature.
d)on the units of temperature and time.

2)If an object is kept in front of a convex mirror, the image will be
a) virtual, magnified.
b) virtual, diminished.
c) virtual, of the same size.
d)real, diminished.

3) When a convex lens forms 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

Answer:

c

b

c

Explanation:

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