27 verified questions · ~30 minutes · answer key checked against the official NTA final key across multiple sources. Text-only questions (diagram-based excluded until they can be shown properly).
The resistance R = V/I, where V = (200 ± 5) V and I = (20 ± 0.2) A. The percentage error in the measurement of R is:
The de-Broglie wavelength of an electron is the same as that of a photon. If velocity of electron is 25% of the velocity of light, then the ratio of K.E. of electron and K.E. of photon will be:
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