A plane mirror doesn't change the apparent size or shape of things.
-- If the meter stick is held parallel to the mirror, or is lying on the mirror,
then its image in the mirror is 1 meter long.
-- If the meter stick is held perpendicular to the mirror, or is standing on
the mirror, or pointing directly at it, then its image in the mirror has no length.
The only one with two different alleles is d meaning it is heterozygous
D
Answer: (B). Solar cell B, because it generates more power.
Explanation:
Given that,
For solar cell A
Energy = 100 Joules
Time = 3 minutes = 180 sec
Power of cell A
Power = Energy/Time


For solar cell B
Energy = 200 joules
Time = 5 minutes = 300 sec
Power of cell B
Power = Energy/Time


Hence, Solar cell B, because it generates more power.