Questions from JEE Main 2015
1. The period of oscillation of a simple pendulum is . Measured value of is known to
accuracy and time for oscillations of the pendulum is found to be using a wrist watch of resolution. The accuracy in the determination of is
Physical World, Units and Measurements
2. The current voltage relation of diode is given by , where the applied voltage is in volt and the temperature is in kelvin. If a student makes an error measuring while measuring the current of at , what will be the error in the value of current
in ?
Physical World, Units and Measurements
3. Distance of the centre of mass of a solid uniform cone from its vertex is If the radius of its base is and its height is , then is equal to
System of Particles and Rotational Motion
Questions from Electrostatic Potential and Capacitance
Physics Most Viewed Questions
1. If and respectively denote energy and gravitational constant, then has the dimensions of:
NEET 2021
Physical World, Units and Measurements
2. The de Broglie wavelength of an electron moving with kinetic energy of is nearly
NEET 2020
Dual Nature of Radiation and Matter
3. A car starts from rest and accelerates at At , a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at ?
(Take
NEET 2021
Motion in a Straight Line
4. A wheel with metallic spokes each long is rotated with a speed of in a plane perpendicular to a magnetic field of . The induced emf between the axle and rim of the wheel
will be,
NEET 2020
Electromagnetic Induction
5. A barometer is constructed using a liquid (density What would be the height of the liquid column, when a mercury barometer reads ?
(density of mercury
NEET 2020
Mechanical Properties of Fluids
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