# Physics - One Mark Question Collection - HSC - Set 2

Set two of the Physics One Mark Question Challenge. Covers questions prepared for all the boards and is comprehensive enough to give a good practice for the students. 10 questions, post your answers and know your score.

Question set 2

1) The amplitude of the inducted emf $E_{0}$ is

a) $NBA(W+\phi _{0})$
b) $NBAW$
c) $NBA\upsilon$
d) $NBA\phi$

2) If the wavelength of light is reduced to half then the amount of scattering will be:

a) increased by 256 times
b) decreased by 256 times
c) increased by 16 times
d) decreased by 16 times

3) Polarization of reflection was discovered by

a) Newton
b) Maxwell
c) Malus
d) Hygen

4) Velocity of the electro magnetic wave through vacuum is

a) $\sqrt{\mu_{0}\epsilon_{0}}$
b) $\frac{1}{\sqrt{\mu_{0}\epsilon_{0}}}$
c) $\sqrt{\frac{\mu_{0}}{\epsilon_{0}}}$
d) $\sqrt{1+\mu_{0}\epsilon_{0}}$

5) A light of wave length $6000 \dot{A}$ is incident normally on a grating 0.005m wide with 2500 lines. Then the maximum order is

a) 3
b) 2
c) 1
d) 4

6) The chromium ions doped in the ruby rod

a) absorbs red light
b) absorbs green light
c) absorbs blue light
d) emits green light

7) The positive column appears in the discharge tube at pressure of

a) 1 mm Hg
b) 10 mm Hg
c) 0.01 mm Hg
d) 0.1 mm Hg

8) The life time atoms in the meta stable state is

a) $18^{-8} \;sec$
b) $10^{-5} \;sec$
c) $10^{-3} \;sec$
d) $10^{-6} \;sec$

9) The orbit corresponds to the Bohr radius $4.77 \dot{A}$ is

a) 2nd orbit
b) 4th orbit
c) 3d orbit
d) 1st orbit

10) The wave length of the matter wave is independent of

a) mass
b) velocity
c) momentum
d) charge