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The velocity of light in glass whose refractive index with respect to air is 1.5 is $2 \times 10^8 m/s$. Ina certain liquid, the velocity of light is found to be $2.5 \times10^8 m/s$. What is the refractive index of the liquid with respect to air?
$ n_g = { C \over v_g } and, n_l = {C \over v_1 } $ $n_l = ng { v_g \over v_l } $
The velocity of light is maximum in a medium of
The velocity of light is maximum in a vacuum. In a vacuum, light travels at its highest speed, which is approximately $3 imes 10^8 ext{ m/s}$. In other mediums like diamond, water, and glass, light slows down due to the higher refractive index.
If a glass rod is immersed in a liquid of the same refractive index, then it will
When a glass rod is immersed in a liquid with the same refractive index, light passes through both materials without bending or reflecting at the boundary, making the rod virtually invisible. This is because there is no change in the speed of light and no refraction occurs at the interface.
For four different transparent medium $ n_{41} \times n_{32} \times n_{21} =$
The relationship between the refractive indices of different media follows the principle of reversibility of light. For four different transparent media, the product of the refractive indices \( n_{41} \times n_{32} \times n_{21} \) is the same as the reciprocal of \( n_{14} \) because \( n_{ij} = \frac{1}{n_{ji}} \). Therefore, \( n_{41} \times n_{32} \times n_{21} = \frac{1}{n_{14}} \).
A convex lens forms a real image of an object for it s two different positons on a screen if hight of the image in both cases be 16 cm and 4 cm then height of the object is ..........cm
$ use \;ho = \sqrt {h_1 h_2 }$
Two thin lenses of focal lengths $ f_1 and f_2 $ are coaxially placed in contact with each other then, the power of combination is ............
When two thin lenses of focal lengths \( f_1 \) and \( f_2 \) are placed in contact, the power of the combination (P) is given by the sum of the powers of the individual lenses. Power is the reciprocal of the focal length (in meters). Therefore, \( P = rac{1}{f_1} + rac{1}{f_2} = rac{f_1 + f_2}{f_1 f_2} \).
If thin prism of $ 5 ^\circ $ gives a deviation of $ 2 ^\circ $ then the refractive index of material of prism is
Read the following quetions and choose if_ Assertion : Focal lengh of a lens for
red colour is smaller than its focal length for violet colour
Reason : is because $n_r \gt n_v $
A glass slab (n =1.5 ) of thikness 9 cm is placed over a written paper what is the Shift in the latters ?
$ use , shift = x \left( { 1 - {1 \over n }} \right) $
A concave mirror of focal length 20 cm forms an virtual image having twice the linear dimensions of the object, the position of the object will be...........cm
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