[" 6.If a body in chared to rubbing it,its with "],[" (a) remaine precieds cenitant."],[" (b) incrines alightly."],[" (c) decreises dightly or inas decrease slightly."]

In case of an orbiting satellite, if the radius of orbit is decreased, then (a) its KE decreases (b) its PE decreases (c) its mechanical energy decreases

When a copper solid shpere is heated, its (a) moment of inertia increases (b) Elasticity decreases © The weight of a body in a liquid increases

When a copper solid sphere is heated, its (a) moment of inertia increases (b) Elasticity decreases ( c) density decreases (d) mass increases

Length of a rectangular solid is increased by 10% and breadth is decreased by 10%. Then the volume of the solid (a) remains unchanged (b) decreases by 1% (c) decreases by 10% (d) increases by 10%

[" 2.If expanding the determinant along any row or column the value of determinant is "],[[" (a) Increasing "," (b) Decreasing "," (c) Remains unchanged "," (d) Both "(a)&(b)]]

On increasing the reverse bias to a large value in a pn junction diode , the current A. remains fixed B. suddenly increased C. decreases slowly D. Increased slowly