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11111nata11111 [884]

3 years ago

10

Which behavior is not true for incident rays striking a concave mirror? a. incident rays parallel to the principal axis are refl

ected to the focus
b. incident rays passing through the focus are reflected parallel to the principal axis
c. incident rays passing through the center are reflected back to the center.
d. incident rays from an object at infinity and parallel to the principal axis are reflected to the center.

1 answer:

mel-nik [20]3 years ago

8 0

Answer:

Option (D)

Explanation:

a concave mirror is called a converging mirror, because when the rays of light falls on it, it converges the path of rays of light falling on it after reflection.

When the rays from the object at infinity and parallel to the principal axis, then after reflection they passes form the focus of the mirror.

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Explanation:

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Answer:

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Explanation:

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For the can the surface area would be ta sum of the top and the sides. The area of the top would be $A_{top}=\pi* r^2=\pi(0.0252m)^2=0.001995m^2$ , the area of the sides would be $A_{sides}=2*\pi*r*L=2*\pi*(0.0252m)*(0.09m)=0.01425m^2$ . Then the total area would be $A_{total}=A_{top}+A_{sides}=0.01624m^2$
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3 years ago

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zhenek [66]

Answer:

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Explanation:

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