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Rom4ik [11]
3 years ago
12

Two converging lenses, one with f = 4.0 cm and the other with f = 37 cm , are made into a telescope. What is the length of this

telescope?
What is the magnification of this telescope?
Physics
1 answer:
d1i1m1o1n [39]3 years ago
8 0

Answer:

The length and the magnification of this telescope are 41 cm and 0.108.

Explanation:

Given that,

Focal length of first lens f= 4.0 cm

Focal length of other lens f'= 37 cm

We need to calculate the length of the telescope

Using formula of length

L=f+f'

Put the value into the formula

L=4+37=41 cm

We need to calculate the magnification of the telescope

Using formula of the magnification

m=\dfrac{f}{f'}

Put the value into the formula

m=\dfrac{4}{37}

m=0.108

Hence, The length and the magnification of this telescope are 41 cm and 0.108.

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Answer:

6

Explanation:

The magnetic field inside a solenoid is given by the following formula:

B = \mu_{0}nI

where,

B = Magnetic Field Inside Solenoid

μ₀ = permittivity of free space

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For Solenoid 1:

B_{1} = \mu_{0}n_{1}I  ------------------- equation 1

For Solenoid 2:

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Therefore,

B_{1} = \mu_{0}n_{2}I\\B_{1} = 6\mu_{0}n_{1}I  ----------------- equation 2

Diving equation 1 and equation 2:

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Hence, the correct option is:

<u>6</u>

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Answer:

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