Tag: Dr

Why a black body at 1000K is red hot whereas it is white hot at 2000K.

02/01/2025

A rocket of mass, m, is fired from the earth’s surface so that it just escapes from the gravitational influence of the earth. If the radius of the earth is r, show that the velocity of escape V, is given by V =√2gr.

01/23/2025

Tropisms in plants

07/23/2024

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