JEE Main 2022 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 26 June 2022, Shift 2, Physics Q56

Question 56 of 90 in this shift, Physics question 26 of 30, Section B.

A set of 20 tuning forks is arranged in a series of increasing frequencies. If each fork gives 4 beats with respect to the preceding fork and the frequency of the last fork is twice the frequency of the first, then the frequency of last fork is ________ Hz.

Official answer

152

NTA final key.

Chapter: Waves
Topic: Beats
Idea tested: Frequency Calculation in a Tuning Fork Series

Same topic in other shifts

All Beats questions

7 Apr 2025, Shift 1 · Q34Two harmonic waves moving in the same direction superimpose to form a wave $x = a\cos(1.5t)\cos(50.5t)$ where t is in seconds. Find the…MediumSingle correct
28 Jun 2022, Shift 1 · Q50The velocity of sound in a gas, in which two wavelengths 4.08m and 4.16m produce 40 beats in 12s, will be :MediumSingle correct
26 Feb 2021, Shift 2 · Q3A tuning fork A of unknown frequency produces 5 beats/s with a fork of known frequency 340 Hz. When fork A is filed, the beat frequency…EasySingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.