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3 years ago

Which statement is true about a polarized object?

Physics

2 answers:

agasfer [191]3 years ago

8 0

A polar substance has regions that are positive and negative, but there are no electrons exchanged. so the best answer is 5

GREYUIT [131]3 years ago

3 0

Answer: Option (3) is the correct answer.

Explanation:

When an object is polarized then it means that if a negatively charged object is brought near a neutral atom then a positive charge will develop on the neutral object near the area of contact.

Whereas a negative charge will develop on the opposite side neutral object which is not in contact with the negatively charged object.

Hence, in a polarized object there are equal number of both positive and negative charges.

Thus, we can conclude that the statement number of positive and negative charges can be the same, is true about a polarized object.

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3 years ago

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4 years ago

White light is spread out into its spectral components by a diffraction grating. If the grating has 1,970 grooves per centimeter

OlgaM077 [116]

Answer;

7.238°

Explanation

From question we know that the grating has 1,970 grooves per centimeter, we can convert to from (cm) to (nm) for unit consistency

The slit separation is expressed below

d=1cm/1970

d=0.0005076

=5076nm

Then the angle (in degrees) that the red light of wavelength 640 nm appear in first order can be calculated using expression below

Sin(x)= mλ/d

Where λ= wavelength=640 nm

d=slit separation

Sin(x)= mλ/d

Sin(x)=(1×640)/5076

=0.126

sin-1(0.126)

X= 7.238°

Therefore,the angle (in degrees) that the red light of wavelength 640 nm appear in first order is 7.238°

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3 years ago

Levi and Clara are trying to move a very heavy box. Levi is pushing the box with a force of 30 N, and Clara is pulling the box w

musickatia [10]

The net force on the box is:
50 + 30 - 65
= 15 Newtons
This can be used in conjunction with
F = ma
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4 years ago

What is one way wind or water change the earth?

insens350 [35]

Answer:

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3 years ago

Read 2 more answers