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Mnenie [13.5K]
3 years ago
13

An incident ray through the focal point of a spherical mirror will:

Physics
2 answers:
Strike441 [17]3 years ago
6 0

Answer:

option (c)

Explanation:

There are the rules to draw the ray diagrams for a mirror.

1. If a ray is incident on a spherical mirror parallel to the principal axis, then after reflection it passes through the focus of the mirror.

2. If a ray is incident on the spherical mirror passing through the focus, then after reflection it becomes parallel to the principal axis.

3. If a ray is incident on the spherical mirror passes through the centre of curvature then after reflection is retraces its path.

So, is an incident ray passes through the focal point of the spherical mirror, then it reflect parallel to the principal axis.

Delvig [45]3 years ago
3 0
Reflect parallel of the principal axis
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Tâm ống dẫn đặt dưới đường phân giới giữa nước và thuỷ ngân h1 = 820mm, chênh lệch chiều cao cột thuỷ ngân h2 = 880mm (Hg = 13,
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P = 79993.43245

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Được -

Vị trí tâm ống dẫn dưới đường thuỷ ngân h1 = 820 mm

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Tỷ trọng của thủy ngân = 13,5951 g / cm3

P = mật độ * gia tốc do trọng lực a * h

Thay thế các giá trị đã cho, chúng ta nhận được -

P = 13,5951 g / cm3 * 980,665 cm / s2 * (88-82) cm

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