Ask Physics Questions Online Free

Hello Buddy , Here would you please Provide me Sample Physics Questions which Ask in Online Competitive Exam ?

[Shaleen]

Friend On your asking Here I am providing Some Sample Physics Questions which Ask in Online Competitive Exam :


Which has a greater momentum: a heavy truck at rest or a moving skateboard?
How is focal length related to converging power of a convex lens?
A conical pendulum has period of one second and its string makes an angle of 45 degree with the vertical.if the same pendulum is used as simple pendulum what will be its period?

A rope is hung at both ends from a horizontal beam, and a weight m is suspended from it. The left part of the rope exerts a force G at P, while the right part of the rope exerts a force H. Find the indicated quantities from the given data.

What is the total mass of 31 washers if each washer has a mass 28.1 grams (g)?

A loaded cart has a total mass of 227 kg. If a 312-N force acting at an angle of 30degrees to the ground is applied, how much work is done in moving the cart 15 m?

2 blocks of masses m1=10kg and m2=5kg connected to each other by a massless in extensible string of length 0.3m and placed along the diameter of a turn table coefficient of friction=0.5 between surface of table and m1 and there is no friction between table and m2.the table is rotating with 10rad/s about the vertical axis.

You attach a meter stick to an oak tree, such that the top of the meter stick is 1.47 meters above the ground. Later, an acorn falls from somewhere higher up in the tree. If the acorn takes 0.311 seconds to pass the length of the meter stick, how high above the ground was the acorn before it fell (assuming that the acorn didn\'t run into any .

The wavelength of a light wave having a frequency of 80,000,000 hz is

(a) What is the wavelength of 90.0 MHz radio waves used in an MRI unit?

(b) If the frequencies are swept over a 2.00% range centered on a 90.0 MHz, what is the range of wavelengths broadcast?

Electromagnetic radiation having a 14.0 mu wavelength is classified as infrared radiation. What is it's frequency?

A vector velocity v has components vx = 20 m/s and vy = -31 m/s. Find the magnitude and the direction of the vector. Give the angle with respect to the horizontal positive x- axis.


1) Describe how a system containing 2 gases can be in :
a)Mechanical but not in thermal and chemical equilibrium
b)Thermal but not in mechanical or chemical equilibrium
c)Thermal and mechanical equilibrium but not in chemical equilibrium


A block of mass m is placed on a smooth turntable at a distance of 20cm from the centre.
a string is tied to the block and its other end passed through a gole in the centre of the table.
A 2nd block of mass m is suspended from the free end of the string as shown in fig.
At what angular speed should turntable rotate
so that the block placed on it should remain at rest on its surface?


There is a cylinder on an inclined plane which has an angle of 'A' with x-axis.Prove that the minimum friction force required to roll the cylinder without slipping is "(2/3)Mg sin A".
'M' is the mass of the cylinder.'g' is the acceleration due to gravity.

If a freely falling ball is somehow equipped with a speedometer by how much would its speed reading increase for every second?

What is the resistance at 20 degree celsius of 200m Aluminium conductor whose cross sectional area is 4mm^2 take resistivity of Aluminium as 2.83x10^-8

Ifs the moon were twice as massive, how would the attractive force of the moon on teh earth change? how about the force of the earth on the moon?

A 70kg person falls from a height of 5.0m onto a concrete surface. The person lands stiff legged on his feet so that it only takes 0.0020s for him to decelerate. What impulse does the person receive?