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3 years ago

1an optical block is related to:1. Lateral displacement produced by a

Physics

1 answer:

Tanzania [10]3 years ago

3 0

Answer:

1. Compact units containing optical components such as bandpass filters and dichroic mirrors. For example, a low cost fluorescence or confocal microscope can be built by combining a laser, optical blocks, and microscope objective lenses.

2. The lateral displacement is directly proportional to the thickness of the glass slab. When the light enters a glass slab,the light rays are refracted. Now,the lateral displacement is the final distance between the incident ray and the emergent ray

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Match the labeled parts of the cell to their functions. Packages and transports materials out of the cell: Breaks down sugar to

Licemer1 [7]

The parts of the cell are mitochondria, lysosomes, ribosomes etc. Their functions are as follows :

(1) Vesicle is a one of the large structure within the cell. Its function is to transfer materials out of the cell.

(2) Mitochondria is also called the power house of the cell. Its function is to break down sugar to supply energy for the cell.

(3) Lysosomes are the suicidal bag of the cell. It breaks down waste and other materials of the cell.

(4) Endoplasmic reticulum helps to produce, process and transport proteins in vesicles to the Golgi apparatus.

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3 years ago

Find the ratio of the diameter of aluminium to copper wire, if they have the same

kicyunya [14]

Answer:

1.24

Explanation:

The resistivity of copper $\rho_1=2.65\times 10^{-8}\ \Omega-m$

The resistivity of Aluminum, $\rho_2=1.72\times 10^{-8}\ \Omega-m$

The wires have same resistance per unit length.

The resistance of a wire is given by :

$R=\rho \dfrac{l}{A}\\\\R=\rho \dfrac{l}{\pi (\dfrac{d}{2})^2}\\\\\dfrac{R}{l}=\rho \dfrac{1}{\pi (\dfrac{d}{2})^2}$

According to given condition,

$\rho_1 \dfrac{1}{\pi (\dfrac{d_1}{2})^2}=\rho_2 \dfrac{1}{\pi (\dfrac{d_2}{2})^2}\\\\\rho_1 \dfrac{1}{{d_1}^2}=\rho_2 \dfrac{1}{{d_2}^2}\\\\(\dfrac{d_2}{d_1})^2=\dfrac{\rho_1}{\rho_2}\\\\\dfrac{d_2}{d_1}=\sqrt{\dfrac{\rho_1}{\rho_2}}\\\\\dfrac{d_2}{d_1}=\sqrt{\dfrac{2.65\times 10^{-8}}{1.72\times 10^{-8}}}\\\\=1.24$

So, the required ratio of the diameter of Aluminum to Copper wire is 1.24.

3 0

3 years ago

A heavy steel cable attached to a motor is lifting a girder. The girder is speeding up.

Yanka [14]

Answer: part a) both the tension and gravity vectors will be pointing downwards.

part b) the tension vector will be pointing upwards and the gravity will be pointing downwards.

Explanation:

part a) Since you are looking at the FBD for the steel cable here, the tension will be pointing downwards because the girder is hung from the cable which creates a downwards tension. Gravity will always point downwards, to the ground.

part b) Since you are looking at the FBD for the girder here, the tension will be pulled upwards because the cable is weighted which creates an upwards tension. Gravity will always point downwards, to the ground.

Sorry for the poor explanation, but hopefully this makes sense.

8 0

3 years ago

at a particular instant a hot air balloon is 100m in the air and decending at a constant speed of 2m/s at this exact instant a g

labwork [276]

<h2>She will find the ball at a horizontal distance of 86.4 m from landed location</h2>

Explanation:

Consider the vertical motion of ball

We have equation of motion s = ut + 0.5 at²

Initial velocity, u = 2 m/s

Acceleration, a = 9.81 m/s²

Displacement, s = 100 m

Substituting

s = ut + 0.5 at²

100 = 2 x t + 0.5 x 9.81 xt²

4.905t² + 2t - 100 = 0

t = 4.32 s or t = -4.72 s

After 4.32 seconds the ball reaches ground.

Now we need to find horizontal distance traveled by ball in 4.32 seconds.

We have equation of motion s = ut + 0.5 at²

Initial velocity, u = 20 m/s

Acceleration, a = 0 m/s²

Time, t = 4.32 s

Substituting

s = ut + 0.5 at²

s = 20 x 4.32 + 0.5 x 0 x 4.32²

s = 86.4 m

She will find the ball at a horizontal distance of 86.4 m from landed location

5 0

4 years ago

A hang glider moves through the air. Does the hang glider have

kifflom [539]

Answer:

C. Yes because the hang glider is moving.

7 0

3 years ago

1an optical block is related to:1. Lateral displacement produced by a​

1an optical block is related to:1. Lateral displacement produced by a