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Gekata [30.6K]
3 years ago
9

what features of stars are plotted on the Hertzsprung-Russell diagram? density and mass B. physical structure and composition ap

parent magnitude and luminosity brightness and surface temperature
Physics
2 answers:
Kipish [7]3 years ago
7 0
It’s lumosity the answer
aliina [53]3 years ago
3 0

Answer:

its luminosity (brightness) and temperature

Explanation:

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an aeroplane moving horizontally with a speed of 180 km/hr drops a food packet while flying at a height of 490m . the horizontal
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3 years ago
Two polarizers A and B are aligned so that their transmission axes are vertical and horizontal, respectively. A third polarizer
Reptile [31]

Answer:

Explanation:

Let the angle between the first polariser and the second polariser axis is θ.

By using of law of Malus

(a)

Let the intensity of light coming out from the first polariser is I'

I' = I_{0}Cos^{2}\theta     .... (1)

Now the angle between the transmission axis of the second and the third polariser is 90 - θ. Let the intensity of light coming out from the third polariser is I''.

By the law of Malus

I'' = I'Cos^{2}\left ( 90-\theta \right )

So,

I'' = I_{0}Cos^{2}\theta Cos^{2}\left ( 90-\theta \right )

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