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goldfiish [28.3K]
3 years ago
15

value of the refractive index of lens is 2.5 The curved surfaces are having The radius of curvature 10 cm and -12cm Out The foca

l length of the lens respectively find out the focal length of the lens?​
Physics
2 answers:
Hoochie [10]3 years ago
3 0

Answer:

4

dhsfb ffhgchbvffffggcg

Savatey [412]3 years ago
3 0

Answer:

16.5

Explanation:

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the acceleration of a body in free fall depends on the place or the world in which it is, true or false?​
Vika [28.1K]

The right answer is True

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3 years ago
During the motion of the slinky in a transverse wave, what do the particles of the slinky coil do?
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C.) The slinky particles move up and down

Explanation:

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5 0
2 years ago
A ray of light has a wavelength of
MArishka [77]

Answer:

The wavelength in vacuum is equal to 428.8 nm.

Explanation:

Given that,

The wavelength of light, \lambda=284\ nm

The refractive index of glass, n = 1.51

We need to find the wavelength in vacuum. The relation between wavelength and refractive index is given by :

n=\dfrac{\lambda_v}{\lambda}\\\\\lambda_v=n\times \lambda\\\\\lambda_v=1.51\times 284\\\\\lambda_v=428.8\ nm

So, the wavelength in vacuum is equal to 428.8 nm.

6 0
3 years ago
If a train travels 80 miles north, 60 miles east, what’s the magnitude of its total displacement? Find the solution by drawing a
AnnZ [28]

Answer:

100 miles North East.

Explanation:

Please see attached photo for diagram.

In the attached photo, X represents the magnitude of the total displacement of the train.

Thus, we can obtain the value of X by using the pythagoras theory as illustrated below:

X² = 80² + 60²

X² = 6400 + 3600

X² = 10000

Take the square root of both side

X = √10000

X = 100 miles.

Therefore, the magnitude of the total displacement of the train is 100 miles North East.

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Which type of mechanical wave is a sound wave?
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3 years ago
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