According to the evolutionary theory, emotions are innate.t or f
1 answer:
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Explanation :
It is given that an oscillator makes 360 oscillations in 3 minutes.
(a) Using unitary method :
No. of vibrations in one minute is,
So, no of vibrations in one minute is 120.
(b) Similarly,
3 minutes = 180 seconds
No of vibrations in one second is
So, the no of vibrations in one second is 2.
(c) Time period of the wave is given by :
The time period of the wave is 0.5 s
(d) The no of vibation per second is called as its frequency.
Hence, this is the required solution.
Answer:
The intensity of light be maximum is for angles 23.3° and 52.3°.
Explanation:
Given that,
Wave length = 632.8 nm
Distance = 1.60 μm
We need to calculate the intensity of light be maximum
Using Bragg's law
We need to calculate the angle for different value of n
Using Bragg's law
For n₁,
Put the value into the formula
For n₂,
Hence, The intensity of light be maximum is for angles 23.3° and 52.3°.