An optical telescope is an instrument that collects and _____.A. focuses light from very small objects

B. focuses light from distant objects

C. reflects light from distant objects

D. stores heat from distant objects

Answers

Answer 1

Answer:

Answer: The correct answer is option (B)

Explanation:

Telescope is an optical device which is designed to make distant object appear nearer. It contains combination of lenses and mirrors which collects the light rays and focus them as the as magnified image.

An optical telescope is a telescope which is used to gather and focus light from visible region of the electromagnetic spectrum to form a magnified image or a photograph of distant objects .This image can be seen by the observer.

Hence ,the correct answer is option(B).

Answer 2

Answer: An optical telescope is an instrument that collects
and focuses light from distant objects

Related Questions

Will it take longer for a train or a car traveling at 100 mi/hr to stop
Two flywheels of negligible mass and different radii are bonded together and rotate about a common axis (see below). The smaller flywheel of radius 13 cm has a cord that has a pulling force of 50 N on it. What pulling force (in N) needs to be applied to the cord connecting the larger flywheel of radius 22 cm such that the combination does not rotate?
Ksp for agbr is 5x10-13. what is the maximum concentration of silver ion that you can have in a 0.1 m solution of nabr?
the waves created by two speed boats in the lake interact to form larger waves this is an example of
When Emma pushes a bag with a force of 27 newtons, the coefficient of kinetic friction between the bag and the floor is 0.23. What is the normal force acting on the bag by the floor?. A. 0.085 newtons B. 27 newtons C. 2.7 × 10^2 newtons . D. 1.2 × 10^2 newtons

What can a parent do to help a child adjust to a new culture area?

Answers

Explanation:

A new culture area for a child could be difficult to adjust in because there will be new things or concepts of the culture about which the student doesn't know anything.

Therefore, parents are the primary source for the child who can help their child by guiding and providing knowledge about the new culture area so that the child can learn it in a better way.

As a result, the child also learns to adjust in a new cultural area.

helping the child by educating him or her on the place what to do and what not to do

Describe the relationship between a moving objects mass and its kinetic energy

Answers

KE = 1/2 mv^2 is the relationship betwee mass and kinetic energy

If the wavelength of a photon in vacuum is the same as the de broglie wavelength of an electron, then the

Answers

Answer:

Explanation:

The photons travel faster faster through space because photons always travel through space faster than electrons, in fact when an electron gets hitted by a photon this boost its speed

Lien uses a spring scale to pull a block toward the right across the lab table. The scale reads 8 N. Which force should Lien conclude is also 8 N?

Answers

Answer

The force on the left across the lab table.

Explanation

The Newton's third law of motion states that; action and reaction are equal but a ct in opposite direction.

When the block of is pulled on the right with a force of X Newtons then there is a force -X Newtons applying and equal force on the left. For every action there must be a reaction with is equal and applying in the opposite direction.

So, if the block is pulled on the right by a force of 8 N there is another equal force applying on the left.

The force to the left of the block on the spring scale

What is the energy of a photon whose frequency is 6.0 x 10^20?(h=6.63 x10^-34 j•s; 1 eV=1.06x10^-19 J)

A. 1.6 MeV

B. 2.5 MeV

C. 3.3 MeV

D. 4.8 MeV

Answers

Answer:

3.75 MeV

Explanation:

The energy of the photon can be given in terms of frequency as:

E = h * f

Where h = Planck's constant

The frequency of the photon is 6 * 10^20 Hz.

The energy (in Joules) is:

E = 6.63 x10^(-34) * 6 * 10^(20)

E = 39.78 * 10^(-14) J = 3.978 * 10^(-13) J

We are given that:

1 eV = 1.06 * 10^(-19) Joules

This means that 1 Joule will be:

1 J = 1 / (1.06 * 10^(-19)

1 J = 9.434 * 10^(18) eV

=> 3.978 * 10^(-13) J = 3.978 * 10^(-13) * 9.434 * 10^(18) = 3.75 * 10^(6) eV

This is the same as 3.75 MeV.

The correct answer is not in the options, but the closest to it is option C.

Create a simple series circuit with a 20-volt battery, one 10.0 ohm resistor, and one 15-ohm light bulb. Set the wire resistivity to "tiny" and the battery resistance to 0.0 ohms What is the current in the circuit? 0.5A 0.4 A 0.8A 1.0 A