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icang [17]
3 years ago
12

Which image CORRECTLY shows how light behaves when it travels from air through glass?

Physics
1 answer:
sammy [17]3 years ago
7 0
Option - C is the right answer.
------------------------------------------------

When light travels from one medium to another, it refracts and bends.
Here, light travels from rarer medium (air) to denser medium (glass) so the light ray bends towards the normal.
And when it travels out from glass that is from denser medium to rarer medium(air) it bends away from the normal
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When a fish expands its air bladder, the density of the fish
Mazyrski [523]
<h2>Answer: decreases</h2>

Every substance, body or material has mass and volume, however the mass of different substances occupy different volumes.

This is where density  D  appears as a  physical characteristic property of matter that establishes a relationship between the mass  m of a body or substance and the volume  V it occupies.

D=\frac{m}{V}

So, according to this equation, the density is inversely ptoportional to the volume:

If the volume increases, the density decreases.

This is what a fish does to have buoyancy, since the density of a body is related to its buoyancy:

A body will float on another fluid if its density is lower.

<h2>This is what the fish does when it expands its air bladder, incrementing its volume, hence decreasing its density.</h2>

8 0
3 years ago
Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.390 mm wide. The diffraction pattern is observed
pashok25 [27]

Answer:

Y = 5.03 x 10⁻³ m = 5.03 mm

Explanation:

Using Young's Double-slit formula:

Y = \frac{\lambda L}{d}

where,

Y = Fringe Spacing = Width of bright fringe = ?

λ =  wavelength = 633 nm = 6.33 x 10⁻⁷ m

L = Screen distance = 3.1 m

d = slit width = 0.39 mm = 3.9 x 10⁻⁴ m

Therefore,

Y = \frac{(6.33\ x\ 10^{-7}\ m)(3.1\ m)}{3.9\ x\ 10^{-4}\ m}

<u>Y = 5.03 x 10⁻³ m = 5.03 mm</u>

8 0
3 years ago
Defanation of evaporqation
Alex

Evaporation is the process of turning from liquid into vapor.

5 0
4 years ago
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Answer:

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4 0
4 years ago
¡¡first convert revolutions per second to
katovenus [111]

Answer:

a. 5.23 m/s² b. 44.23 N

Explanation:

a. What is the centripetal acceleration of the  hammer?  

The centripetal acceleration a = rω² where r = radius of circle and ω = angular speed.

Now r = length of chain = 1.4 m and ω = 0.595 rev/s = 0.595 × 2π/s = 3.74 rad/s.

So a = rω²

= 1.4 m × (3.74 rad/s)²

= 5.23 m/s²

b. What is the tension in the chain?

The tension in the chain, T = ma where m = mass of hammer = 8.45 kg and a = centripetal acceleration of hammer = 5.23 m/s². This tension is the centripetal force on the hammer.

So, T = 8.45 kg × 5.23 m/s²

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6 0
3 years ago
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