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arsen [322]
3 years ago
6

A lens collects light and focuses it into a small spot. This increases the ________ of the light wave.A lens collects light and

focuses it into a small spot. This increases the ________ of the light wave.
Physics
1 answer:
Anika [276]3 years ago
8 0

Answer:

intensity.

Explanation:

when the light collected by the lens is focused into a small spot it tends to increase the intensity of the light.

as different path of light with different intensity combines from passing through the lens it tends to make the light path and intensity coherent and after being coherent there intensity increases.

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PLS HELP ME!
jeyben [28]

Answer:

\underline{ \boxed{ yes}}\\

Explanation:

given : initial \: velocity \: (u )= 40 {ms}^{ - 1}  \\ given : final \: velocity \: (u )= 0 {ms}^{ - 1}  \\ given :   - (acceleration) \: (a_r) = 2 {ms}^{ - 2}  \\ given : distance  \: (s) \: =   \: ? : \\  but \:  {v}^{2}  =  {u}^{2}  + 2( a)s\\  {0}^{2}  =  {40}^{2}  + 2( - 2)s \\  -  {40}^{2}  =  - 4s \\ s =  \frac{ -  {40}^{2} }{ - 4}  \\ s =  \frac{1600}{4}  \\s = 400 \: m

3 0
3 years ago
Why do bulbs in series circuit glow brightly than those in the parallel circuit?
barxatty [35]

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3 0
3 years ago
The speed of a car during a trip is represented in the graph. Compare distance and displacement at four hours into the trip.
yawa3891 [41]

The correct option is (D) Both, distance traveled and displacement are 300 km.

Why?

To solve the problem we must remember what distance and displacement means.

Distance means the ground/space covered in a certain time, in physics, distance is equal to the product of the speed and time.

Displacement means the distance between the starting and ending point of an object after (or not) being in motion.

So, for the problem, using the graphic we are asked to find the distance and displacement in 4 hours

We can see that in 4 hours, the distance covered is 300km, also, we can see that the difference (in distance) between the starting point at 0 hours and the ending point at 4 hours is equal to the distance covered in the same time.

Hence, we can see that the correct option is D) Both, distance traveled and displacement are 300 km.

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3 0
3 years ago
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A vertical tube 1.34 m long is open at the top.It is filled with 44.2 cm of water.If the speed of sound is 344 m/s, what willthe
tester [92]

Answer:

the fundamental resonant frequency is 95.76 Hz

Explanation:

The computation of the fundamental resonant frequency be is given below:

= 1.34 m - 0.442 m

= 0.898 m

Now

L = \frac{\lambda}{4} \\\\\lambda = 4L

Now the fundamental resonant frequency is

f = \frac{V}{\lambda} \\\\= \frac{V}{4L}\\\\= \frac{344}{4\times 0.898}

= 95.76 Hz

hence, the fundamental resonant frequency is 95.76 Hz

5 0
2 years ago
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