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900x0.2=1.2xFView attachment 64128 help ANS is B
D?somebody solve thistoo plssss
what is thissss explainnnnnn
Wavelength= 83.5-17.1*(2)A vibrating tuning fork is held above a glass cylinder filled to the top with water. The water level is
steadily lowered. A loud sound is first heard when the water level is 83.5 cm above the bench.
The next loud sound is heard when the water level is 17.1 cm above the bench.
The speed of sound in air is 340 m s–1.
What is the frequency of the tuning fork?
A 128 Hz B 256 Hz C 384 Hz D 512 Hz
please explain this question.
When the current is zero, the voltage corresponds to the emf of the cellwhat is thissss explainnnnnn
For destructive interference the path difference is 0.5λ, 1.5λ, 2.5λ, etc. For the first dark fringe i.e. n=1, it is 0.5λ so if u put the value of n in the C option so you will find that the p.d is 0.5λ, hence C is correctsomebody solve thistoo plssss
But shouldnt it be D as it asks only for positive values of nFor destructive interference the path difference is 0.5λ, 1.5λ, 2.5λ, etc. For the first dark fringe i.e. n=1, it is 0.5λ so if u put the value of n in the C option so you will find that the p.d is 0.5λ, hence C is correct
1 is a positive value of n...but if we use D for the 1st dark fringe, the path diff would be 1.5λ which is not correct...it should be 0.5λBut shouldnt it be D as it asks only for positive values of n
Oh i see!1 is a positive value of n...but if we use D for the 1st dark fringe, the path diff would be 1.5λ which is not correct...it should be 0.5λ
how did you know you have to make a stationary wave like this with 4 nodes?This is the stationary wave formed....before this those formed were not given in the options so this is corect
View attachment 64129
I thot it was d 2 but its actually c wtf
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