Last seen: Sep 30, 2021
A fuel is a good one if its Butane value is high.
Mirrors used for solar cooker are convex.
(d) The statement of the Assertion is false but the Reason is true.
(c) Assertion is true but the Reason is false.
(a) Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
(d) disposing off spent fuel easily.
(b) temperature difference at different levels in the ocean.
(b) Silicon
(b) Sun is the ultimate source of energy.
(c) solar cell
(d) presence of water and absence of air
Unit of calorific value of a substance is J/kg.
(a) Anthracite
(d) both high calorific value and moderate ignition temperature
(c) Hydro and wind energy plants are non-polluting Explanation: In rainy season, wind velocity is higher. So the blades of windmill moves with gre...