LASIK (Laser-Assisted in Situ Keratomileusis) eye surgery is a popular laser surgery used to treat refractive vision problems.
The procedure uses ultraviolet (UV) radiations to reshape the cornea of the eye to improve vision.
- The laser used in LASIK surgery emits UV light, which is precisely controlled to ensure only the surface layers of the cornea are reshaped.
Thus, the correct answer is UV radiations.
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
Two similar metallic rods of the same length \( l \) and area of cross section \( A \) are joined and maintained at temperatures \( T_1 \) and \( T_2 \) (\( T_1>T_2 \)) at one of their ends as shown in the figure. If their thermal conductivities are \( K \) and \( \frac{K}{2} \) respectively. The temperature at the joining point in the steady state is:

According to equipartition principle, the energy contributed by each translational degree of freedom and rotational degree of freedom at a temperature T are respectively (\( k_B = \text{Boltzmann constant} \)):
Kepler's second law (law of areas) of planetary motion leads to law of conservation of