Physics
Wollen clothes keep the body warm because

Wool rejects heat from the outer objects
Wool increases the temperature of the body
Wool is a bad conductor
Wool absorbs radiant heat from outer objects

ANSWER DOWNLOAD EXAMIANS APP

Physics
A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by

Decreasing the radius of the capillary tube
Increasing the height of water in the vessel
None of these
Increasing the radius of the capillary tube

ANSWER DOWNLOAD EXAMIANS APP