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Units and Measurements

JEE Main · Physics · 16 past questions

These are the board's own papers. 185 more board questions reprinted in the books we use in class are for signed-in students: sign in.

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  1. Q15 2026 8 Apr Shift 2
    A new unit ($\alpha$) of length is chosen such that it is equal to the speed of light in vacuum. What is the…