List of top Physics Questions asked in NEET (UG)

Consider a compound slab consisting of two different materials having equal thicknesses and thermal conductivities $K$ and $2\, K,$ respectively. The equivalent thermal conductivity of the slab is

The molar heat capacity of water at constant pressure, $C$, is $75\, JK ^{-1}\, mol ^{-1}$. When $1.0\, KJ$ of heat is supplied to $100\, g$ of water which is free to expand, the increase in temperature of water is :

Solar energy is mainly caused due to

A nuclear reaction is given by,
 _ZX^A → _Z+1Y^A +_–1e⁰+\(\bar v\) represents 

A convex lens is dipped in a liquid whose refractive index is equal to the refractive index of the lens. Then its focal length will

If a ball is thrown vertically upwards with speed $u,$ the distance covered during the last $'t'$ seconds of its ascent is

The time period of mass suspended from a spring is $T$. If the spring is cut into four equal parts and the same mass is suspended from one of the parts, then the new time period will be

Which of the following ray are not electromagnetic waves

The mass number of a nucleus is

A sample of radioactive element has a mass of $10\, g$ at an instant $t = 0.$ The approximate mass of this element in the sample after two mean lives is

According to Curie's law, the magnetic susceptibility of a substance at an absolute temperature $T$ is proportional to

$A n-p-n$ transistor conducts when

A particle moves along a circle of radius $\left(\frac{20}{\pi}\right) m$ with constant tangential acceleration. If the velocity of the particle is $80\, m/s$ at the end of the second revolution after motion has begun, the tangential acceleration is

A diamagnetic material in a magnetic field moves

Fuse wire is a wire of

An ideal gas heat engine operates in a Carnot cycle between $227^{\circ} C $ and $127^{\circ} C. $ It absorbs $6\, kcal$ at the higher temperature. The amount of heat (in kcal) converted into work is equal to

An electric kettle has two heating coils. When one of the coils is connected to an a.c. source, the water in the kettle boils in $10$ minutes. When the other coil is used the water boils in $40$ minutes. If both the coils are connected in parallel, the time taken by the same quantity of water to boil will be

A long solenoid carrying a current produces a magnetic field B along its axis. If the current is doubled and the number of turns per cm is halved the new value of the magnetic field is

An observer moves towards a stationary source of sound with a speed \(\frac {1}{5}^{th}\) of the speed of sound. The wavelength and frequency of the source emitted are λ and f respectively. The apparent frequency and wavelength recorded by the observer are respectively:

Following diagram performs the logic function of:

When a long spring is stretched by $2\, cm,$ its potential energy is $U.$ If the spring is stretched by $10\, cm,$ the potential energy stored in it will be

Which is having minimum wavelength : -

Which of the following is best close to an ideal black body :-

A particle (A) is dropped from a height and another particle (B) is projected in horizontal direction with speed of 5 m/s from the same height then correct statement is :