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JEE Main 2023 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 13 April 2023, Shift 1, Physics Q41

Question 41 of 90 in this shift, Physics question 11 of 30, Section A.

The ratio of powers of two motors is

\frac{3\sqrt{x}}{\sqrt{x}+1}

, that are capable of raising 300 kg water in 5 minutes and 50 kg water in 2 minutes respectively from a well of 100 m deep. The value of

x

will be

(1)2
(2)4
(3)16Official answer
(4)2·4

Official answer

Option 3

NTA final key.

Chapter: Work, Energy and Power
Topic: Power
Idea tested: Power in Fluid Flow

Same idea in other shifts

Asked 2× in all

28 Jun 2022, Shift 2 · Q35Water falls from a 40 m high dam at the rate of $9\times10^4$ kg per hour. Fifty percentage of gravitational potential energy can be…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.