List of top Physics Questions

If a car covers $2/5^{th}$ of the total distance with $v_1$ speed and $3/5^{th}$ distance with $v_2$ then average speed is
If a ball of $80\, kg$ mass hits an ice cube and temperature of ball is $100\,^{\circ}C$, then how much ice converted into water ? (Specific heat of ball is $0.2 \,cal \,g^{-1}$, Latent heat of ice $= 80\, cal \,g^{-1}$)
If a ball is thrown vertically upwards with a velocity of 40 m/s, then velocity of the ball after two seconds will be $(g = 10 \, m/s^2)$
If $13.6 \,eV$ energy is required to separate a hydrogen atom into a proton and an electron, then the orbital radius of electron in a hydrogen atom is
Identify the correct statement from the following:
Iceberg floats in sea water with a part of it submerged. The percentage fraction of the ice berg submerged is (Density of ice $= 0.9 \,g \,cm^{-3}$, density of sea water $= 1.1 g cm^{-3}$)
How will the diffraction pattern of single slit change when yellow light is replaced by blue light ? The fringes will be:
How much work can be obtained from 100 calories of heat energy ?
How much heat is produced by 1500 Wheater in 7 min?
How many wavelengths of $Kr^{86}$ are there in one metre ?
How does the Young's modulus vary with the increase of temperature ?
How does the isothermal bulk modulus $B_i$ depend on pressure $p$ of the gases ?
Hot wire ammeters are used for measuring
Hooke's law is valid:
Hooke's law states that
Henry is the unit of
Heavy stable nuclei have more neutrons than protons. This is because of the fact that
Heavy water is used as moderator in a nuclear reactor. The function of the moderator
Height at which the value of $g$ becomes $1/4th$ to that on earth is
Heat is absorbed by a body but its temperature does not rise. Which of the following statements explains the phenomena?
he apparent depth of a needle lying at the bottom of the tank, which is filled with water of refractive index $1.33$ to a height of $12.5 \,cm$ is measured by a microscope to be $9.4\, cm$. If water is replaced by a liquid of refractive index $1.63$ upto the same height. What distance would the microscope have to be moved to focus on the needle again?
Half of the lens is wrapped in black paper. How will it change the image?
Gyromagnetic ratio is the ratio of magnetic moment $(\mu_{1})$ to the orbital angular momentum $(l)$ Its numerical value for an electron is given by
Gases exert pressure on the walls of the container because the gas molecules
From the top of tower, a stone is thrown up. It reaches the ground in $t_1$ s. A second stone thrown down with the same speed reaches the ground in $t_2$ s. A third stone released from rest reaches the ground in $t_3$ s. Then