KEAM Mock Test
KEAM Mock Test
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Physics
The velocity of an object is defined as:
A) Distance traveled divided by time
B) Change in displacement per unit time
C) Mass times acceleration
D) Force per unit area
Which of the following laws states that the total current entering a junction equals the total current leaving the junction?
A) Ohm’s Law
B) Kirchhoff’s Current Law
C) Kirchhoff’s Voltage Law
D) Faraday’s Law
The phenomenon of diffraction is most prominent when the size of the obstacle is:
A) Much larger than the wavelength of light
B) Comparable to the wavelength of light
C) Much smaller than the wavelength of light
D) Independent of the wavelength of light
The potential energy of an object at height h is given by:
A) \( mgh \)
B) \( \frac{1}{2}mv^2 \)
C) \( \frac{1}{2}kx^2 \)
D) \( qV \)
In a parallel circuit, the total resistance is:
A) The sum of individual resistances
B) The reciprocal of the sum of the reciprocals of individual resistances
C) Always greater than the highest resistance
D) Equal to the highest resistance
Which of the following particles has the least mass?
A) Proton
B) Neutron
C) Electron
D) Alpha particle
The time period of a simple pendulum is dependent on:
A) Its mass
B) The length of the pendulum
C) The amplitude of the swing
D) The material of the bob
The unit of magnetic flux is:
A) Tesla
B) Weber
C) Henry
D) Gauss
According to the second law of thermodynamics:
A) Energy can neither be created nor destroyed
B) Entropy of an isolated system always increases
C) Entropy of an isolated system always decreases
D) Energy is conserved in any process
The focal length of a convex lens is:
A) Always positive
B) Always negative
C) Zero
D) Sometimes positive, sometimes negative
