Which of the following is incorrect ?

A

All derived quantities may be represented dimensionally in terms of the base quantities.

B

A base quantity cannot be represented dimensionally in terms of base quantities.

C

The dimension of a derived quantity is never zero in any base quantity.

D

The dimension of a base quantity in other base quantities is always zero.

What type of questions asked from the lesson of magnetic effect of electric current 

Wavelength of green light is

A) 400-450 nm

B) 500-550 nm

C) 660-720 nm

D) 720-800 nm

What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?

What are the main components of our environment? Explain each of them briefly.

What are examples of hydrotropism plants?