MCQ
On heating a liquid, the refractive index generally
- ✓Decreases
- BIncreases or decreases depending on the rate of heating
- CDoes not change
- DIncreases
✓
Answer
Correct option: A.
Decreases
a
(a) Refractive index $ \propto \frac{1}{{(Temperature)}}$
(a) Refractive index $ \propto \frac{1}{{(Temperature)}}$
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
Two identical charged particles each having a mass $10 \,g$ and charge $2.0 \times 10^{-7}\,C$ area placed on a horizontal table with a separation of $L$ between then such that they stay in limited equilibrium. If the coefficient of friction between each particle and the table is $0.25$, find the value of $L$.[Use $g =10\,ms ^{-2}$ ]..........$cm$
→Radioactive element decays to form a stable nuclide, then the rate of decay of reactant is
If a particle of charge ${10^{ - 12}}\,coulomb$ moving along the $\hat x - $ direction with a velocity ${10^5}\,m/s$ experiences a force of ${10^{ - 10}}\,newton$ in $\hat y - $ direction due to magnetic field, then the minimum magnetic field is
→What was the fissionable material used in bomb dropped at Nagasaki (Japan) in the year $1945$ ?
→If resistance of a conductor is reduced to half and magnitude of current is doubled, then produced heat:
A beam of light consisting of red, green and blue colours is incident on a right angled prism. The refractive index of the material of the prism for the above red, green and blue wavelengths are $1.39, 1.44$ and $1.47$ respectively.
→The prism will
The apparent wavelength of the light from a star moving away from the earth is $0.01\%$ more than its real wavelength. Then the velocity of star is......$km/sec$
→In the following combinations of logic gates, the outputs $A, B$ and $C$ are respectively
→In a potentiometer experiment the balancing with a cell is at length $240\, cm$. On shunting the cell with a resistance of $2$ $\Omega$, the balancing length becomes $120\, cm$. The internal resistance of the cell is ................. $\Omega $
→A circular coil expands radially in a region of magnetic field and no electromotive force is produced in the coil. This can be because