Physics Questions and Answers
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.
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 spectrum of white light consists of coloured lights arranged in the following order
blue, red, green, yellow, indigo, violet, orange
red, orange, yellow, green, blue, indigo, violet
red, orange, yellow, indigo, green, blue, violet
indigo, green, blue, violet, yellow, red, orange
yellow, blue, green, violet, orange, indigo, red
Correct answer is B
No explanation has been provided for this answer.
What is the apparent colour of a RED SHIRT when viewed in PURE green light?
Red
Green
Yellow
Black
Blue
Correct answer is D
When green light is shone on a red object, it absorbs all of the green light and not reflecting anything. Hence, it appears black.
0%
25%
75%
300%
400%
Correct answer is C
\(\frac{P_2V_2}{T_2}\) = \(\frac{P_1V_1}{T_1}\)
P2 = 2P1
T1 = 2T2
\(\frac{2P_1V_2}{T_2}\) = \(\frac{P_1V_1}{2T_1}\)
V2 --V1
% change = \(\frac{V_1 - \frac{1}{4}V_1}{V_1}\) X 100%
= 75%
A piece of wood is floating on water. The forces acting on the wood are
upthrust and reaction
weight and reaction
weight and upthrust
upthrust and viscousity
weight and viscousity
Correct answer is C
No explanation has been provided for this answer.
Ripples on water are similar to light waves in that they both
have the same wavelength
are longitudinal
cannot be reflected
travel at the same speed
can be refracted and diffracted
Correct answer is E
No explanation has been provided for this answer.