List of top Questions asked in KEAM

If \( m_a \) and \( m_i \) are the slopes of the adiabatic and isothermal curves for an ideal gas, then \[ \left( \frac{c_p}{c_v} = \gamma \right) \]
The zeroth law of thermodynamics leads to the concept of
The elastic energy stored per unit volume in a stretched wire is: \[ \left( Y = \text{Young's modulus of the material of the wire}; \quad S = \text{stress acting on the wire} \right) \]
If the radii of two soap bubbles are respectively 2 cm and 3 cm, then the ratio of the excess pressures inside the soap bubbles is
A particle of 100 g mass is projected vertically up with a kinetic energy of 20 J. The maximum height reached by the particle is (\( g = 10 \) m/s\( ^2 \)) (neglecting air resistance).
For a smoothly running analog clock, the ratio of the angular velocity of the minute hand to the angular velocity of the hour hand is
The principle involved in the performance of a circus acrobat is the conservation of
A constant force of 6 N acting on a stationary body displaces it by 3 m in 2 s. The average power delivered is
A person standing in an elevator experiences weight loss when the elevator
The coefficient of friction between the road and the tyres of a cyclist is 0.1. The maximum speed with which he can take a circular turn of radius 2 m without skidding is ( \( g = 10 \) m/s\( ^2 \) )
A body of weight \( W \) is suspended from the ceiling of a room through a chain of weight \( w \). The ceiling pulls the chain by a force.
The velocity (\( v \))-time (\( t \)) graph for the motion of a body is a straight line making an angle \( 60^\circ \) with the time axis. Then the body is moving with an acceleration (in m\( s^{-2} \)) of:
If \(\vec{a} = 0.4\hat{i} + 0.3\hat{j} + b\hat{k}\) is a unit vector, then the value of b is
Which of the 3d block element has the minimum melting point?

Iron does not exhibit ___________ oxidation state.

The correct electronic configuration of Uranium (Z=92) is
Which one of the following is an outer orbital complex?
Conformational isomerism is not possible in
When sodium nitroprusside is added to sodium fusion extract the presence of sulphur is indicated by the formation of a violet colored complex. Its formula is
The decreasing order of reactivity of butyl bromides in \(S_N2\) reaction is
Which of the following is the most acidic compound?
When propanoic acid is treated with bromine and red phosphorus in aqueous medium, 2-bromopropanoic acid is formed. This reaction is known as
Which of the following groups is deactivating ortho-para directing in aromatic electrophilic substitution?
Gatterman reaction is used to convert benzene diazonium chloride to
The correct increasing order of basic strength is