MCQ
When a plane polarised light is passed through an analyser and analyser is rotated through 90°, the intensity of the emerging light
- AVaries between a maximum and minimum
- BBecomes zero
- CDoes not vary
- ✓Varies between a maximum and zero
✓
Answer
Correct option: D.
Varies between a maximum and zero
Varies between a maximum and zero
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A parallel plate capacitor with plates of area $1\,m^2$ each, are at a separation of $0.1\,m.$ If the electric field between the plates is $100\,N/C,$ the magnitude of charge on each plate
→Assertion : ${}^{90}Sr$ from the radioactive fall out from a nuclear bomb ends up in the bones of human beings through the milk consumed by them. It causes impairment of the production of red blood cells.
→Reason : The energetic $\beta - $ particles emitted in the decay of ${}^{90}Sr$ damage the bone marrow
In a series $\text{L - C - R}$ circuit, current in the circuit is $11A$ when the applied voltage is $220V$. Voltage across the capacitor is $200V$. If value of resistor $20\Omega$ then the voltage across the unknown inductor is.
→A proton and an alpha particle are separately projected in a region where a uniform magnetic field exists. Their initial velocities are perpendicular to direction of magnetic field. If both the particles move around magnetic field in circles of equal radii, the ratio of momentum of proton to alpha particle $\left( {\frac{{{P_p}}}{{{P_\alpha }}}} \right)$ is
→An electric bulb of $100 \,W -300 \,V$ is connected with an $AC$ supply of $500 \,V$ and $\frac{150}{\pi} \,Hz$. The required inductance to save the electric bulb is ..........$H$
→The magnetic field at the origin due to the current flowing in the wire is
Two solenoids have identical geometrical construction and same number of truns but one is made of thick wire and other of thin wire. Which of the following quantities are different for two solenoids :-
$(a)$ Self inductance.
$(b)$ Rate of joule heating if the same current goes through them.
$(c)$ Magnetic potential energy if the same current goes through them .
$(d)$ Time constant.
→$(a)$ Self inductance.
$(b)$ Rate of joule heating if the same current goes through them.
$(c)$ Magnetic potential energy if the same current goes through them .
$(d)$ Time constant.
A beam of electron is used in $Y.D.S.E.$ The slit width is $d$ When velocity of electron is increased then
→The phosphor bronze strip is used in a moving coil galvanometer because
Minimum excitation potential of Bohr's first orbit in hydrogen atom is