Day 456: JEE Mains Physics
5 questions. Try each one first, then open its answer.
Question 1
Moving Charges and Magnetism. Asked once: 24 Jan 2025
86N equally spaced charges each of value q , are placed on a circle of radius . The circle rotates about its axis with an angular velocity as shown in the figure. A bigger Amperian loop encloses the whole circle where as a smaller Amperian loop A encloses a small segment. The difference between enclosed currents, , for the given Amperian loops isTap an option to check your answer.
Question 2
Nuclei. Asked once: 22 Jan 2026 S1
11The minimum frequency of photon required to break a particle of mass 15.348 amu into particles is kHz . [mass of He nucleus = 4.002 amu , and ]Tap an option to check your answer.
Question 3
Oscillations. Asked once: 4 Apr 2025
17Two simple pendulums having lengths and with negligible string mass undergo angular displacements and , from their mean positions, respectively. If the angular accelerations of both pendulums are same, then which expression is correct ?Tap an option to check your answer.
Question 4
Ray Optics. Asked once: 23 Jan 2026 S2
22The size of the images of an object, formed by a thin lens are equal when the object is placed at two different positions 8 cm and 24 cm from the lens. The focal length of the lens is cm .Question 5
Semiconductor Electronics. Asked once: 5 Apr 2026 S1
20For the given logic circuit, which of the following inputs combination will make both LED-1 and LED-2 to glow?Tap an option to check your answer.