Which one of the following has more volume. Iron block or a wooden block of same mass.

Which one of the following has more density. Water or cooking oil.

Which one of the following doesn't has the same unit as others?

Why can't you able to compress a wooden block?

Which of the following is used to detect the presence of block in blood vessels ?

Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?

Which of the following gates can be served as a building block for any digital circuit

Wooden block occupies more volume than the iron ball of same mass. Give reason.

On a frictionless surface a block of mass. M moving at a speed v collides elastically with another block of same mass M which is initially at rest. After collision the first block moves at an angle theta to its initial direction and has a speed v/3 . The second block’s speed after the collision is :

A force F is applied on a block of mass M . The block is displaced through a distance d in the direction of the force. What is the work done by the force on the block? Does the internal energy change because of this work?