Day 129: MHT-CET Physics
5 questions. Try each one first, then open its answer.
Question 1
Current Electricity. Asked 2 times: 12 May 2024 S2, 18 Apr 2026 S1 See all 2 times it was asked
130A potentiometer wire of length m and resistance is connected in series with a resistance of and a cell of e.m.f. V with internal resistance . The length of m on potentiometer wire balances the e.m.f. ofTap an option to check your answer.
Question 2
Dual Nature of Radiation and Matter. Asked 2 times: 22 Apr 2025 S2*, 18 Apr 2026 S1 (* = numbers or wording changed that year) See all 2 times it was asked
145In case of photoelectric emission from certain metal, the cutoff frequency is . If the radiation of frequency is incident on the metal plate, the maximum possible velocity of the emitted electrons will be ( = mass of electron, = Planck's constant)Tap an option to check your answer.
Question 3
Electromagnetic Induction. Asked 2 times: 9 May 2023 S2*, 18 Apr 2026 S1 (* = numbers or wording changed that year) See all 2 times it was asked
137The magnetic potential energy stored in a certain inductor is mJ when the current in the inductor is mA. The inductance of the inductor isTap an option to check your answer.
Question 4
Magnetic Materials. Asked 2 times: 21 Apr 2025 S2*, 18 Apr 2026 S1 (* = numbers or wording changed that year) See all 2 times it was asked
132The region inside a current carrying toroid is filled with a material (Niobium) having susceptibility . The percentage increase in the magnetic field in the presence of Niobium over that without it, isTap an option to check your answer.
Question 5
Oscillations. Asked 2 times: 11 May 2023 S2, 18 Apr 2026 S1 See all 2 times it was asked
119All the springs in fig (a), (b) and (c) are identical, each one having force constant K. Mass m is attached to each system. If , and are the periodic time of oscillations of the three systems in fig (a), (b) and (c) respectively, thenTap an option to check your answer.