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3 years ago

How can the effect of chromatic aberration be reduced?

2 answers:

kramer3 years ago

6 0

The answer to the question:
<span>How can the effect of chromatic aberration be reduced?
A) by using multiple lenses
B) by reducing the focal length
C) by using a larger objective lens
D) by making the telescope larger

is:
</span>B) by reducing the focal length

alexgriva [62]3 years ago

5 0

Answer:

A - by using multiple lenses

Other ways to reduce chromatic abberration is by increasing the focal length, changing the color image to black and white, using an achromatic lens etc

Explanation:

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Answer:

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Explanation:

u = Initial velocity of rock = 12.2 m/s

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x = Displacement in x direction = 25 m

Displacement in x direction is given by

$x=u\cos\theta t\\\Rightarrow t=\dfrac{x}{u\cos\theta}\\\Rightarrow t=\dfrac{25}{12.2\times \cos73^{\circ}}\\\Rightarrow t=7\ \text{s}$

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3 years ago

A 238 N force is applied to a 25 kg object. What is the object's acceleration?

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Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

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f is the force

m is the mass

From the question we have

$a = \frac{238}{25} \\ = 9.52$

We have the final answer as

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