BIOLOGY CH19 Plant Physiology — Science STD 9 — Question

The resistance of a conductor is R. If Its length is doubled, then its new resistance will be ……………….

The physician who discovered that scurvy can be cured by ingestion of citrus fruits is ______.

A man leaves his house at 6.30 a.m. for a morning walk and returns back at 7.30 a.m. after covering 4 km. Displacement covered by him is …………….

If no object is placed on the hook, then the pointer of the spring balance reads ………………….

The displacement covered by a second hand of radius V in a clock after one revolution is

Which among the following is not a device to measure mass?

The magnitude of the centripetal force is given by (F= ….)

A meristematic tissue consists of

Which is the major excretory product in human?

An ant moves from one corner of a room diagonally to the opposite corner. If the dimensions of the hall are 8m x 6m, the displacement of the ant is