Question

Magnetic field lines around a straight conductor forms pattern of
a) Concentric circle b) Square shape c) spiral
d) straight line.
3. The focal length of a mirror depends on
a) The material of mirror
c) aperture of the mirror
b) Thickness of silver coating
d) radius of curvature.
5. The magnification produced by a mirror is +1.5. The mirror is
a) Concave
b) convex
c) both (a) and (b) d) none.​

Answer 1

Answer:

Option d

Option c

Option a

Explanation:

all 3 are the correct information

Answer 2

Answer:

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