NEET (UG) entrance exam Question Bank Solutions for Physics

A parallel plate capacitor has a uniform electric field ‘`vec "E"`’ in the space between the plates. If the distance between the plates is ‘d’ and the area of each plate is ‘A’, the energy stored in the capacitor is ______

(ε₀ = permittivity of free space)

If E and G respectively denote energy and gravitational constant, then `"E"/"G"` has the dimensions of ______.

A parallel plate capacitor has a uniform electric field `overset(->)("E")` in the space between the plates. If the distance between the plates is ‘d’ and the area of each plate is ‘A’, the energy stored in the capacitor is ______

(ε₀ = permittivity of free space)

A body is executing simple harmonic motion with frequency ‘n’, the frequency of its potential energy is ______.

If E and G respectively denote energy and gravitational constant, then `"E"/"G"` has the dimensions of ______.

Vectors `vecA = 5hati - ahatj + 3hatk` and `vecB = 10hati + 8hatj + bhatk` are parallel to each other, then values of 'a' and 'b' are

The displacement of particle is given by x = `2/lambda (1 - e^(-lambdat))`, the acceleration of particle at 2s when λ = 2s^–1 will be (Take `l`n 0.018 = – 4)

The INCORRECT statement about Newton's second law of motion is

In photoelectric effect, the photoelectric current started to flow. This means that the frequency of incident radiations is ______.

Two particles of equal masses have velocity `vecv_1 = 2hati` m/s and `vecv_2 = 2hatj` m/s. The first particle has an acceleration `veca_1 = (3hati + 3hatj)` m/s² while the acceleration of the other particle is zero. The centre of mass of the two particles moves in a

p-n junction diode is formed

The excess pressure in a soap bubble of radius R and surface tension T is: 

If both the mass and the radius of the earth decrease by 1%, then the value of acceleration due to gravity will

Which of the following substances (A, B and C) has the highest specific heat? 

The difference between the apparent frequency of a stationary source of sound as perceived by the observer during its approach and recession is 2% of the frequency of the source. If the speed of sound in air is 300 ms^–1, then the velocity of the observer is

If the velocity of a car is given by V = (150 − 10x)^½ m/s. If a car retards their motion by applying brakes then what will be the acceleration?

An ideal gas in a container of volume 500 cc is at a pressure of 2 × 10⁵ N/m². The average kinetic energy of each molecule is 6 × 10⁻²¹ J. The number of gas molecules in the container is ______. 

Van de Graaff generator ______

Radium nucleus was moving with constant velocity v. It disintegrates into He and Rn. He and Rn move as shown in the figure. The CM of the system of He and Rn will move along ...A ... after the explosion of Ra. Here, A refers to:

The resistivity of a wire ______