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3 years ago

11

What property of light waves does the michelson-morley interferometer directly demonstrate?

1 answer:

yan [13]3 years ago

8 0

The wave nature of light, due to the experiment having bright and dark bands corresponding to places where you have constructive and destructive interference.

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No contexto o verbo tomar adquirir duplo sentido . quais sao os sentidos

Rama09 [41]

<span>In the context of the verb take acquire double meaning. what are the senses. Thats what your saying in spanish right?. that has nothing to do with physics, thats english! JS.
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3 years ago

Sound waves are_________Waves.

Anastasy [175]

Sound waves are mechanical(?) waves?

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3 years ago

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What is the effective resistance r of the two-resistor system? express the effective resistance in terms of r1 and r2?

Alekssandra [29.7K]

As per the question, the resistor system contains two resistors.

The two resistors are denoted as $r_{1}\ and\ r_{2}\ respectively$

We are asked to calculate the effective resistance in terms of $r_{1}\ and\ r_{2}\ respectively$

The two resistors can be connected in two ways.

CASE-1: Let the resistors are connected in series.

When the resistors are connected in series, the effective resistance is the algebraic sum of the individual resistors.

Hence, the effective resistance $r= r_{1} +r_{2}$ [ans]

CASE-2: Let the resistors are connected in parallel.

The effective resistance is calculated as follows-

$\frac{1}{r}= \frac{1}{ r_{1}}+ \frac{1}{r_{2}}$

$=\frac{r_{1}+ r_{2}} {r_{1} r_{2}}$

⇒ $r =\frac{r_{1} r_{2}} { r_{1} +r_{2}}$ [ans]

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4 years ago

A coil consists of 180 turns of wire. Each turn is a square of side d=30 cm, and a uniform magnetic field directed perpendicular

alexira [117]

Answer:

Emf induced i equal to 329.4 volt

Explanation:

Note : Here i think we have to find emf induced in the coil

Number of turns in the coil N= 180

Sides of square d = 30 cm = 0.3 m

So area of the square $A=0.3\times 0.3=0.09m^2$

Magnetic field is changes from 0 to 1.22 T

Therefore $dB=1.22-0=1.22T$

Time interval in changing the magnetic field dt = 0.06 sec

Induced emf is given by

$e=-N\frac{d\Phi }{dt}=-NA\frac{dB}{dt}$

$e=-180\times 0.09\times \frac{1.22}{0.06}=329.4volt$

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4 years ago

Look at the bubbles.

horrorfan [7]

The answer would be A

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3 years ago

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