Free physics question bank
JEE Mains 2024 08 Apr Evening Shift physics questions with solutions
Browse JEE Mains 2024 08 Apr Evening Shift Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 30 questions
- MCQmediumCapacitor
A capacitor has air as dielectric medium and two conducting plates of area 12 cm² and they are 0.6 cm apart. When a slab of dielectric having area 12 cm² and 0.6 cm thickness is inserted between the plates, one of the conducting plates has to be moved by 0.2 cm to keep the capacitance same as in previous case. The dielectric constant of the slab is: (Given ε₀ = 8.834 × 10⁻¹² F/m)
Options
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution → - Numericmediumsemiconductor
A potential divider circuit is connected with a dc source of 20 V, a light emitting diode of glow in voltage 1.8 V and a zener diode of breakdown voltage of 3.2 V. The length (PR) of the resistive wire is 20 cm. The minimum length of PQ to just glow the LED is ______ cm.
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution → - NumericeasyAC Circuits
An alternating emf E = 110√2 sin(100t) volt is applied to a capacitor of 2 μF, the rms value of current in the circuit is ______ mA.
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution → - MCQmediumNewtons law of motion and Friction
A given object takes n times the time to slide down 45° rough inclined plane as it takes the time to slide down an identical perfectly smooth 45° inclined plane. The coefficient of kinetic friction between the object and the surface of inclined plane is:
Options
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution → - NumericeasyKinematics part-2 Projectile Motion
A body of mass M thrown horizontally with velocity v from the top of the tower of height H touches the ground at a distance of 100 m from the foot of the tower. A body of mass 2M thrown at a velocity v/2 from the top of the tower of height 4H will touch the ground at a distance of ______ m.
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution → - NumericmediumCurrent electricity
A heater is designed to operate with a power of 1000 W in a 100 V line. It is connected in combination with a resistance of 10 Ω and a resistance R, to a 100 V mains as shown in figure. For the heater to operate at 62.5 W, the value of R should be ______ Ω.
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution → - NumericeasyMagnetism and matter
The coercivity of a magnet is 5 × 10³ A/m. The amount of current required to be passed in a solenoid of length 30 cm and the number of turns 150, so that the magnet gets demagnetised when inside the solenoid is ______ A.
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution → - MCQmediumKinematics part-2 Projectile Motion
The angle of projection for a projectile to have same horizontal range and maximum height is:
Options
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution → - MCQeasyGravitation
Two satellite A and B go round a planet in circular orbits having radii 4R and R respectively. If the speed of A is 3v, the speed of B will be:
Options
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution → - NumericmediumWave Optics
Two slits are 1 mm apart and the screen is located 1 m away from the slits. A light wavelength 500 nm is used. The width of each slit to obtain 10 maxima of the double slit pattern within the central maximum of the single slit pattern is ______ × 10⁻⁴ m.
JEE Mains 2024 08 Apr Evening Shift
Open question & full solution →