The biprism experiment is performed by using first the blue light of wavelength 4800 Å and then with red light. It is found that the fourth bright ban

Question

The biprism experiment is performed by using first the blue light of wavelength 4800 Å and then with red light. It is found that the fourth bright ban

The biprism experiment is performed by using first the blue light of wavelength 4800 Å and then with red light. It is found that the fourth bright band of blue light coincides with the third bright band of red light. What is the wavelength of red light?
A. 4800Å
B. 6000Å
C. 6400Å
D. 5600Å

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

nth bright fringe if red light `(lambda_(1)=7500" Å")` coincides with (n +1)th bright fringe of green light `(lambda_(2)=6000" Å")` The value of n, is

2 Answers 4 Views

The distances of a point on the screen from two slits in biprism experiment is `1.8xx10^(-5)` m and `1.23xx10^(-5)` m if wavelength of light used is 6

2 Answers 6 Views

The distance between the slit and the biprism and between the biprims and the screen 50 cm each. The angle of the biprism is `179^(@)` and its refract

2 Answers 4 Views

In a biprism experimentn is performed yellow light of wavelength `5600Å`. The yellow light was then replaced by red light of wavelengts `6400Å`. Find

2 Answers 4 Views

In a biprism expeirment , the distance between the slit and the biprism is 20 cm and the distance between the biprism and focal and plane of the epyep

2 Answers 4 Views

In a biprism experiment, the distance of the eighth bright band from the centre of interference pattner is 4 mm. The distance of the twelfth bright ba

2 Answers 4 Views

In a biprism experiment, the wavelenght of red light used is 6850Å and that of violet light used is 4050Å. The value of n for which the `(n+2)^(th)` b

2 Answers 4 Views

Two sources of light P and Q have wavelengths 6000 Å and 5500 Å respectively. In a biprism experiment, first the source P is used, and then it is repl

2 Answers 4 Views

Then nth bright band of red light of wavelength `6750Å` is coincide with `(n+1)^(th)` bright band of green light of wavelength `5400Å`. Find the value

2 Answers 5 Views

Band with for red light of wavelength `6400Å` us 0.32 mm. If red lilght is replaced by blue light of wavelength `4800Å`, then the change in bandwidth

2 Answers 5 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`lambda_(1)=4800A^(@), n_(1), n_(2)= lambda_(2)`
For same path difference,
`n_(1) lambda_(1)=n_(2) lambda_(2)`
` lambda_(2)=(n_(1) lambda_(1))/(n_(2))=(4xx4800)/(3)=6400A^(@)`

4 views Answered 2023-02-05 15:29