Answer:
M = 222 fringes
Explanation:
given
λ = 559 n m = 559 × 10⁻⁹ m
radius = 0.026 mm = 0.026 ×10⁻³ m
length of the glass plate = 22.1 ×10⁻² m
using relation
= 221.79
= 221 (approx.)
hence no of bright fringe
M = m + 1
= 221 +1
M = 222 fringes
How do H-R diagrams help scientists compare new stars with the Sun? In your answer, name one type of data that H-R diagrams do n
2 answers:
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Answer:
A)
B)
C)
D) mosquitoes speed in part B is very much larger than that of part C.
Explanation:
Given:
- Distance form the sound source,
- sound intensity level at the given location,
- diameter of the eardrum membrane in humans,
- We have the minimum detectable intensity to the human ears,
(A)
<u>Now the intensity of the sound at the given location is related mathematically as:</u>
..........................................(1)
<em>As we know :</em>
is the energy transferred to the eardrums per second.
(B)
mass of mosquito,
<u>Now the velocity of mosquito for the same kinetic energy:</u>
(C)
Given:
- Sound intensity,
<u>Using eq. (1)</u>
Now, power:
Hence:
(D)
mosquitoes speed in part B is very much larger than that of part C.