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.
180 m
140 m
120 m
240 m
Correct answer is C
No explanation has been provided for this answer.
$16.90
$84.48
$1690.00
$8.48
Correct answer is A
Power[p] = IV → 2 * 440 = 880Watt
Energy = p * t = 880 * 48hrs
= 42240 or 42.24kwh
But 1 kwh cost $0.40
∴ 42.24kwh costs 42.24 x 0.40
= 16.896 or $16.90
thinner insulation.
greater diameter
smaller diameter
thicker insulation
Correct answer is B
No explanation has been provided for this answer.
Which of the arrangements of radiations below shows decreasing order of wavelengths?
X-rays> radio waves > infrared radiations
Radio waves> infrared radiations > X-rays
Infrared radiations > radio waves > X-rays
X-rays> infrared radiations > radio waves
Correct answer is B
radio waves have a longer wavelength than infrared light, and infrared than x-rays in the electromagnetic spectrum
(3.7, 7.4)
(6.2, 9.9)
(2.5, -4 .8).
(14.7, 1.4)
Correct answer is B
No explanation has been provided for this answer.