HSC Science इयत्ता १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Physics

State and obtain Malus’ law.

List the uses of polaroids.

State Brewster’s law.

What is the angle of polarisation and obtain the equation for an angle of polarisation?

Discuss about pile of plates.

What is double refraction?

Mention the types of optically active crystals with example.

Discuss about Nicol prism.

How is polarisation of light obtained by scattering of light?

What is normal focusing?

An unpolarised light of intensity 32 Wm^-2 passes through three Polaroids such that the axes of the first and the last Polaroids are at 90°. What is the angle between the axes of the first and middle Polaroids so that the emerging light has an intensity of only 3 Wm^-2?

The reflected light is found to be plane polarised when an unpolarized light falls on a denser medium at 60° with the normal. Find the angle of refraction and critical angle of incidence for total internal reflection in the denser to rarer medium reflection.

Discuss about simple microscope and obtain the equations for magnification for near point focusing and normal focusing.

What is the near point focusing?

Why is oil-immersed objective preferred in a microscope?

What are the advantages and disadvantages of using a reflecting telescope?

What is the use of an erecting lens in a terrestrial telescope?

What is the use of collimator in a spectrmeter?

What are the uses of spectrometer?

What is myopia?