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Physics
List of top Physics Questions asked in KEAM
Find the magnetic field inside a solenoid having number of turns 7000, length 1m, and current 1 A.
KEAM - 2025
KEAM
Physics
Magnetic Field
Moment of inertia of a disc about the axis passing through the center and perpendicular to the plane is \(I_1\). What is the moment of inertia about its diameter?
KEAM - 2025
KEAM
Physics
Moment Of Inertia
If the resistance of a wire is 5 $ \Omega $ and 6 $ \Omega $ at 30°C and 40°C respectively, find the temperature coefficient of resistance.
KEAM - 2025
KEAM
Physics
Thermal Expansion
Bernoulli's principle is applicable to:
KEAM - 2025
KEAM
Physics
Fluid Mechanics
If $ P_0 $ is the atmospheric pressure and $ P $ is the pressure at a depth $ h $, find the Guage pressure.
KEAM - 2025
KEAM
Physics
Fluid Mechanics
Find $ R $ in the following circuit:
KEAM - 2025
KEAM
Physics
Current electricity
A light is incident on a surface having refractive index $ \frac{4}{3} $ and reflected light is completely polarised. $ \left( \tan 53^\circ = \frac{4}{3} \right) $. What is the angle of incidence?
KEAM - 2025
KEAM
Physics
Ray optics and optical instruments
A cricmeter hits a ball with an initial velocity of 40 m/s. Calculate the maximum range.
KEAM - 2025
KEAM
Physics
Projectile motion
A pn junction diode without bias acts as:
KEAM - 2025
KEAM
Physics
applications of diode
If the angular displacement in 10 seconds is $ 150^\circ $, find the number of revolutions in 10 seconds.
KEAM - 2025
KEAM
Physics
Rotational motion
What is the ratio of distances travelled by a body in the first two intervals of 5 seconds? (Given the initial velocity $ u = 1 \, \text{m/s} $ and the body moves with a constant acceleration of $ 5 \, \text{m/s}^2 $)
KEAM - 2025
KEAM
Physics
Kinematics
If the mean free path of a gas molecule at 27°C is $ 10 \times 10^{-7} \, \text{m} $, then the mean free path at 87°C is:
KEAM - 2025
KEAM
Physics
The Kinetic Theory of Gases
Chromatic aberration arises in their lens due to:
KEAM - 2025
KEAM
Physics
Ray optics and optical instruments
If
$ V $
is the velocity of wave in a rope having tension $ T $,
find the velocity when the tension becomes $ 8T $.
KEAM - 2025
KEAM
Physics
Wave Motion
Two particles of the same mass have charges in the ratio 3 : 1. What is the ratio of their time periods when they enter a constant magnetic field with the same velocity?
KEAM - 2025
KEAM
Physics
Induced Magnetic Fields
1 torr = ________
KEAM - 2025
KEAM
Physics
Pressure
The effective capacitance when $n$ identical capacitors are connected in parallel is 10μF, and when connected in series is 0.4μF. Find the value of $n$.
KEAM - 2025
KEAM
Physics
Capacitors and Capacitance
Find the incorrect pair:
KEAM - 2025
KEAM
Physics
Thermodynamics
Find the incorrect pair:
KEAM - 2025
KEAM
Physics
Thermodynamics
The effective capacitance when $n$ identical capacitors are connected in parallel is 10μF, and when connected in series is 0.4μF. Find the value of $n$.
KEAM - 2025
KEAM
Physics
Capacitors and Capacitance
The displacement of a body varies with time $ t $ as $ S = \frac{1}{2} t^2 - 6t $. Find the time at which the velocity becomes zero.
KEAM - 2025
KEAM
Physics
Kinematics
What is the working principle of a Bunsen Burner?
KEAM - 2025
KEAM
Physics
Thermodynamics
Current in a coil changes at the rate of 10 A/s. The induced emf is 120V. Find the inductance $ L $ of the coil.
KEAM - 2025
KEAM
Physics
Electromagnetic induction
The initial amount of radioactive element in a sample is $ 6 \times 10^3 $. After 48 years, the number of radioactive elements becomes $ 0.75 \times 10^3 $. Find the half-life.
KEAM - 2025
KEAM
Physics
Radioactivity
The dimensional formula of product of moment of inertia and square of angular velocity is:
KEAM - 2025
KEAM
Physics
Dimensional Analysis
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