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3 years ago

How can i write a report on reflaction of light

Physics

1 answer:

Aleksandr [31]3 years ago

8 0

Answer:

Placed the semicircular plastic block on the centre of a blank sheet of paper. Traced its outline and indicated the centre of the flat side

Explanation:

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A passenger travels from the first floor to the 60th floor, a distance of 210 m in 35 s. what is the elevators speed

Sati [7]

Distance=210m
Time=35s

$\\ \tt\bull\leadsto Speed=\dfrac{Distance}{Time}$

$\\ \tt\bull\leadsto Speed=210/35=6m/s$

3 0

3 years ago

Read 2 more answers

You illuminate a slit with a width of 70.3 μm with a light of wavelength 719 nm and observe the resulting diffraction pattern on

Zielflug [23.3K]

Answer:

4.3 cm

Explanation:

We are given that

Width,d=70.3 $\mu m=70.3\times10^{-6} m$

$1\mu m=10^{-6} m$

Wavelength, $\lambda=719 nm=719\times 10^{-9} m$

$1nm=10^{-9} m$

$r=2.11 m$

We have to find the width in cm of the pattern.

The angle for the first minimum m=1

$sin\theta_{min}\approx \theta=\frac{\lambda}{d}=\frac{719\times 10^{-9}}{70.3\times 10^{-6}}=0.0102 rad$

$y=r\theta=2.11\times 0.0102=0.0215 m$

The width of the pattern= $2y=2\times 0.0215=0.043 m=0.043\times 100=4.3 cm$

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3 years ago

At this rate, how long would it take for two continents 2900 km kilometers apart to collide?

Sophie [7]

At what rate??????????

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4 years ago

Why do you think plants surround the seeds with a yummy fruit?

beks73 [17]

Answer:Cross-pollination is two plants that work together to pollinate and self-pollinate is when a flower pollinates itself. ... Why do you think plants surround the seeds with a yummy fruit? To protect the seeds so that they can reproduce. How is cross-pollination different from self-pollination?

Explanation:

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3 years ago

Attempting to move a large rock useing a long lever will the work you do on the lever be greater than the same as or less than t

jolli1 [7]

The work that you do on the lever will be the same as the work done by the lever on the rock. This aligns with the Law of the Conservation of Energy which states that energy can not be created nor destroyed. Since work can be calculated as force applied over a distance, you will apply a smaller force but your distance will be longer. The lever will apply a greater force over a shorter distance in proportion to yours. Therefore, the same amount of work is done on both sides of the lever.

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3 years ago

How can i write a report on reflaction of light​

How can i write a report on reflaction of light