<h2>The frequency of driver is 700 Hz</h2>
Explanation:
The frequency of wave in a string is given by the relation
n = 
here n is the frequency
p is the number of antinodes and l is the length of string .
T is the tension in string and m is the mass per unit length
Thus 420 =
I
Now if there is 5 antinodes , the value of p = 5
Thus n = 
II
Dividing II by I , we have
n/420 = 5/3
or n = 5/3 x 420 = 700 Hz
Answer:
The correct option is A. 18 V
Therefore,
Explanation:
Given:
Total Voltage,
V = 56 V,
Voltage drop
To Find:
(Assumed ,as it is not given clearly in the question)
Solution:
So in series combination total Voltage is given as
Substituting the values we get
Therefore,
Answer:
A
Explanation:
Solution:-
- According to the law of relativity the relative speed between two moving objects is inversely proportional to the the time taken.
- Ignoring Doppler Effect.
- So if the relative speeds of two objects in motion i.e ( swing and spaceship) are positive then the time frame of reference for both object relative to other other decreases. So in other words if spaceship approaches the swing i.e relative velocity is positive then the time period of oscillation observed would be less than actual i.e less than 4 seconds.
- Similarly, if spaceship moves away from the swing i.e relative velocity is negative then the time period of oscillation observed would be more than actual i.e more than 4 seconds.
Answer:
it expands by 11 cm.
Explanation:
First we need the coefficient of linear thermal expansion of steel
a = 12e-6/K
Now we use the equation for linear thermal expansion
L1 = L0 * (1 + a * (t1 - t0))
Where
L0: length before expansion
L1: expanded length
t0: temperature before expansion
t1: temperature expanded
L1 = 403 * (1 + 12e-6 * (24 - 1.22)) = 403.11 m
It expanded 11 cm.
The brightness and intensity of a color are defined by its saturation. To lower the saturation of a pigment hue, both white and black (grey) are added to the color.
What does saturation mean in color?
- The quantity of white light blended with a colour is referred to as saturation.
- Colors with high saturation, such as the circle on the left, contain little or no white light. The quantity of shade blended with the color determines the level of brightness.
- The wavelengths of light that an item reflects determine its 'color.' This is governed by the arrangement of electrons in the atoms of that substance, which will absorb and re-emit photons of different energy in accordance with intricate quantum principles.
To learn more about saturation visit:
brainly.com/question/1173101
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