Differentitate betwen phtophsophorylation and phototrespiration.

Differnetiate betwen overloading and short circuting.

Differentiate betwen polarised an unpolarised light .How are these represented?

What is the difference betwen pressure and stress?

Write difference betwen national parks and animal sanctuaries

Write down the relation betwen the energy and the momentum of a photon.

In a Young's double slit experiment,the separation betwen the two slits is d and the wavelength of the light is lambda .The intensity of light falling on the slit 1 is four times the intesntiy of light falling on slit 2.Choose the correct choice(s).

A concave mirror of focal length 20 cm and a convex mirror of focal length 15 cm are placed 50 cm apart,such that the two mirrors face each other .An object is placed exactly midway betwen them.Find teh nature and position of the image formed by reflection first at the concave mirror and then at the convex mirror.

Fill in the blanks: The valve present betwen the right auricle and right ventricle is ....... .

Determine the angular separation betwen central maximum and first order maximum of the difraction pattern due to a single slit of width 0.25 mm,when light of wavelength 5,890 overset@A is incident on it normally.