GATE Physics: Questions 3 - 5 of 323
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Question number: 3
Appeared in Year: 2015
Four forces are given below in Cartesian and spherical polar coordinates.
Where K is a constant. Identify the correct option.
(i) and (ii) are conservative but (iii) and (iv) are not
(ii) and (iii) are conservative but (i) and (iv) are not
(iii) and (iv) are conservation but (i) and (ii) are not
(i) and (iii) are conservative but (ii) and (iv) are not
Question number: 4
Appeared in Year: 2016
Write in Short
The total power emitted by a spherical black body of radius at a temperature is . Let be the total power emitted by another spherical black body of radius kept at temperature . The ratio is . (Give your answer up to two decimal places)