A thin rod of mass 6m and length 6L is bent into a regular hexagon. The M.I. of the hexagon about a normal axis to its plane and through the centre of the system is (A) mL2 (B) 3mL2 (C) 5mL2 (D) 11mL2

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?