List of top Physics Questions asked in KEAM

Which one of the following is not a derived unit ?

A train of $150\, m$ length is going towards north direction at a speed of $10 \,ms ^{-1}$. A parrot flies at a speed of $5 \,ms ^{-1}$ towards south direction . parallel to the railway track. The time taken by the parrot to cross the train is equal to

A piece of ice is floating in a jar containing water. When the ice melts, then the level of water...... :

A wire of length $ L $ and area of cross-section $ A $ is stretched through a distance $ x $ metre by applying a force $ F $ along length, then the work done in this process is: (Y is Youngs modulus of the material)

$ 800\,cc $ volume of a gas having $ \gamma =\frac{5}{3} $ is suddenly compressed adiabatically to $ 100\,cc $ . If the initial pressure is P, then the final pressure will

Which of the accompanying P-V diagrams best represent; an isothermal process?

Physical independence of force is a consequence of

The recoil velocity of a $ 4.0\, kg $ rifle that shoots a $ 0.050\, kg $ bullet at a speed of $ 280\text{ }m{{s}^{-1}} $ is:

If $ \lambda_m $ denotes the wavelength at which the radiative emission from a black body at a temperature $T\, K$ is maximum, then

An object travels north with a velocity of $ 10\text{ }m{{s}^{-1}} $ and then speeds up to a velocity of $ 25\text{ }m{{s}^{-1}} $ in 5 s. The acceleration of the object in these 5 s is:

A ball hangs from a string inside a train moving along a horizontal straight track. The string is observed to incline towards the rear of the train making a constant small angle with the vertical. It shows that the train is:

A plate has a length $ 5\pm 0.1\text{ }cm $ and breadth $ 2\pm 0.01\text{ }cm $ . Then the area of the plate is:

A resistor is constructed as hollow cylinder of dimensions $ {{r}_{a}}=0.5\,cm $ and $ {{r}_{b}}=1.0\,cm $ and $ \rho =3.5\times {{10}^{-5}}\Omega m $ . The resistance of the configuration for the length of 5 cm cylinder is ... $ \times {{10}^{-3}}\Omega $ .

An automobile in travelling at 50 km/h, can be stopped at a distance of 40 m by applying brakes. If the same automobile is travelling at 90 km/h, all other conditions remaining same and assuming no skidding, the minimum stopping distance in metres is:

Unit of Stefan's constant is

In the circuit given in figure, 1 and 2 are ammeters. Just after key K is pressed to complete the circuit, the reading will be

An $LCR$ series $AC$ circuit is at resonance with $10\, V$ each across $L, C$ and $R$. If the resistance is halved, the respective voltages across $L, C$ and $R$ are

The ratio of the respective de Broglie wavelengths associated with electrons accelerated from rest with the voltages 100 V, 200 V and 300 V is

A bullet when fired into a target loses half of its velocity after penetrating $20\, cm$. Further distance of penetration before it comes to rest is

An object, moving with velocity $5\,m / s$, undergoes an acceleration of $1\,m / s ^{2}$ at time $t=0 .$ If the object has a mass of $1\,kg$, the kinetic energy ( KE) of the object at time $t=5\, s$ is