JEE Main 2026 — Motion In One Dimension Question with Solution
JEE Main 2026 (28 January Shift 1)
Question
Water drops fall from a tap on the floor, 5 m below, at regular intervals of time, the first drop strikes the floor when the sixth drop begins to fall. The height at which the fourth drop will be from ground, at the instant when the first drop strikes the ground is m.
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Show full solutionCorrect option: A
Correct answer
A4.2
Step-by-step explanation
Time for first drop to fall 5 m:
gives s.
Since the first drop strikes when the sixth begins, there are 5 intervals: each interval s.
When drop 1 hits the ground (at s), drop 4 has been falling for s.
Distance fallen by drop 4: m.
Height of drop 4 above ground: m.
gives s.
Since the first drop strikes when the sixth begins, there are 5 intervals: each interval s.
When drop 1 hits the ground (at s), drop 4 has been falling for s.
Distance fallen by drop 4: m.
Height of drop 4 above ground: m.
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This is a previous-year question from JEE Main 2026, covering the Motion In One Dimension chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.