Answer:
so m = 3 ,4 wavelength between 410 to 660 nm so 484.25 nm and 645.6 nm light produce principal maximum
Explanation:
given data
grating =2605 lines per centimeter
angle = 30.3°
wavelengths between 410 and 660 nm
to find out
two wavelengths of the incident light that could have produced this maximum
solution
we know diffraction grating has 2605 lines / cm
so d = ( 1/ 2605 cm )
and we know equation
d sinθ = m× λ
so λ = d sinθ / m
θ = 30.3 so sin30.3 =
λ = (1/2605) sin30.3 / m
λ = (1937 nm ) / m
here put m = 1 , 2 , 3 , 4
if m = 1
λ = (1937 nm ) / 1 = 1937 nm
if m = 2
λ = (1937 nm ) / 2 = 968.5 nm
if m = 3
λ = (1937 nm ) / 3 = 645.6 nm
if m = 4
λ = (1937 nm ) / 4 = 484.25 nm
so that m = 3 ,4 wavelength between 410 to 660 nm so 484.25 nm and 645.6 nm light produce principal maximum
and longest wavelength is between 410 to 660 nm is 645.6 nm
Answer:
The frog takes 8 jumps to reach top of well
Explanation:
Given data
Frog at bottom=17 foot
Each time frog leaps 3 feet
Frog has not reached the top of the well, then the frog slides back 1 foot
To Find
Total number of leaps the frog needed to escape from well
Solution
in 1 jump distance jumped=3+(-1)
=2 feet
=2×1 feet
The "-1" is because the frog goes back
Now After 2 jumps the distance jumped as:
Distance Jumped=2+2
Distance Jumped=2*2
=4 feet
Similarly after 7 jumps
Distance Jumped=2+2+......+2
Distance Jumped=2*7
=14 feet
Now after 8th jump the frog climbs but doesnot slide back as it is reached to the top of well.
So
Distance Jumped=(Distance Jumped after 7 jumps)+3
=14+3
=17 feet
The frog takes 8 jumps to reach top of well
Answer: B. A gravitational field
Explanation:
Surrounding earth is gravitational field. Gravitational field is a region of space were gravitational force can be felt and gravitational force is the gravitational pull on the surface of the earth. The presence of this gravity is what allow us to be able to walk freely without falling. It also make us jump up and be able to land back on the ground. Assuming there are no force of gravity in the surface of the earth, there won't be any possibility of landing back on the ground after jumping.
Answer:
this is it
Explanation:
For every 9 turns of the driver the follower will make 4 complete rotations!
Answer:
Volume flow rate = 
Explanation:
The volume flow rate through a channel can be gotten by multiplying its area and its velocity.
The channel under consideration is a circular channel. Hence, the cross-sectional area can be calculated by using the relation for calculating the area of a circle
Cross-sectional area = 
volume flow rate= 
Volume flow rate =
