If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
The phenomenon of photoelectric effect is NOT used in
automatic doors
bimetallic strip thermometers
light meters in cameras
setting off burglar alarms
sound production from film tracks.
Correct answer is B
No explanation has been provided for this answer.
The silvered walls of a vacuum flask minimise loss of heat due to
conduction and convection
conduction only
convection and radiation
convection only
radiation only
Correct answer is E
No explanation has been provided for this answer.
27.8
17.8
13.6
6.4
3.6
Correct answer is C
No explanation has been provided for this answer.
2cm3
4cm3
6cm3
8cm3
12cm3
Correct answer is E
No explanation has been provided for this answer.
Crompton effect
de Broglie’s laws
Frank-Hertz experimental law
Heisenberg’s uncertainly principle
wave-particle paradox
Correct answer is D
No explanation has been provided for this answer.