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Answer: Solor cycles and tings
Answer:
At light intensity I = 3, is P a maximum
Explanation:
Given:
now differentiating the above equation with respect to Intensity 'I' we get
or
or
or
Now for the maxima 
thus,
or
or
or
or
I = 3
thus, <u>for the value of intensity I = 3, the P is maximum</u>
at I = 3
or
or
Answer:
Explanation:
This question pertains to resonance in air column. It is the case of closed air column in which fundamental note is formed at a length which is as follows
l = λ / 4 where l is length of tube and λ is wave length.
here l = .26 m
λ = .26 x 4 = 1.04 m
frequency of sound = 330 Hz
velocity of sound = frequency x wave length
= 330 x 1.04
= 343.2 m /s
b )
Next overtone will be produced at 3 times the length
so next length of air column = 3 x 26
= 78 cm
c )
If frequency of sound = 256 Hz
wavelength = velocity / frequency
= 343.2 / 256
= 1.34 m
= 134 cm
length of air column for resonance
= wavelength / 4
134/4
= 33.5 cm
