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.
Which of the following types of thermometer is used for the calibration of other thermometers?
liqud-in-glass thermometer
constant volume gas thermometer
optical pyrometer
thermocouple
Correct answer is B
No explanation has been provided for this answer.
The velocity ratio of an inclined plane
increases with increase in the angle of inclination
increases with decrease in the angle of inclination
decreases with decrease in the angle of inclination
is independent of the angle of inclination
Correct answer is A
No explanation has been provided for this answer.
1.1 x 10-1J
5.5 x 10-2J
1.1 x 10-4J
5.5 x 10-8J
Correct answer is B
e = \(\frac{4FI}{Y \pi d^2} = \frac{4 \times 11 \times 10 \times 2}{7 \times 10^3 \times 3.14(2 \times 10^{-2})^2}\)
= 0.001m
E = \(\frac{1}{2} Fe = \frac{1}{2} \times 110 \times 0.001\)
= 5.5 x 10-2J
From Newton's first law of motion,
a body can only undergo translational motion
once a body remains at rest no force acts on it
the net force acting in uniform linear motion is zero
a body's inertia is its weight
Correct answer is C
The key point of this law is that if there is no net force resulting from unbalanced forces acting on an object. If all the external forces cancel each other out, then the object will maintain a constant velocity.
period
amplitude
wavelength
frequency
Correct answer is B
No explanation has been provided for this answer.