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Physics 9 Chapter 6 - Work and Energy - 20
1.
Which of the following energy is used in solar cookers?
a) Mechanical energy
b) Chemical energy
c) Solar energy
d) Geothermal energy
2.
Which of the following energy is used in solar distillation plants?
a) Chemical energy
b) Mechanical energy
c) Solar energy
d) Geothermal energy
3.
Which of the following energy is used in solar power plant?
a) Geothermal energy
b) Solar energy
c) Mechanical energy
d) Chemical energy
4.
By which of the following, solar energy can be converted directly into electricity?
a) Platinum cells
b) Solar cells
c) Electric cells
d) Wafers cells
5.
What is the other name of solar cells?
a) Photo cells
b) Wafers cells
c) Electric cells
d) Platinum cells
6.
With which of the following, solar cells are made?
a) Tungsten wafer
b) Platinum wafer
c) Silicon wafer
d) Sulphur wafer
7.
With which of the following, photo cells are made?
a) Tungsten wafer
b) Sulphur wafer
c) Silicon wafer
d) Platinum wafer
8.
When sunlight falls on a solar cell, it converts which energy directly into electrical energy?
a) Light energy
b) Chemical energy
c) Mechanical energy
d) Sound energy
9.
Solar cells are used in....................?
a) Watches
b) Calculators
c) Toys
d) All of these
10.
By which of the following, solar energy can be converted directly into electricity?
a) Platinum cells
b) Photo cells
c) Wafers cells
d) Electric cells
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