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gregori [183]
2 years ago
8

What is the speed of a wave if the frequency is 2.34 and the wavelength is 7.3?

Physics
1 answer:
Zepler [3.9K]2 years ago
3 0

Answer:

v= 17.082m/s

Explanation:

v= f( lambda)

v= 2.34(7.3)

v= 17.082m/s

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Any substance that contains starch turns blue-black in presence of <u>iodine solution.</u>

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Select the correct answer.
Dahasolnce [82]

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a is the correct choice

Explanation:

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Helium–neon laser light (λ = 632.8 nm) is sent through a 0.350-mm-wide single slit. What is the width of the central maximum on
Cloud [144]

Answer:

The width of the central bright fringe is 7.24 mm.

Explanation:

Given that,

Wavelength = 632.8 nm

Width d= 0.350 mm

Distance between screen and slit D= 2.00 m

We need to calculate the distance

Using formula of distance

y_{m}=\dfrac{\lambda D}{d}

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We need to calculate the width of the central bright fringe

Using formula of width

width = 2\times|y_{m}|

Put the value into the formula

width=2\times3.62

width = 7.24\ mm

Hence, The width of the central bright fringe is 7.24 mm.

5 0
3 years ago
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Anna35 [415]
I think the Answer is b
7 0
3 years ago
One liter of water at 56◦C is used to make iced
Genrish500 [490]

Answer:22.6g

Explanation:

Mass of water(mw)=1liter=1000g

Final temperature=20°C

Temperature of ice=0°C

Temperature of water=56°C

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change in temperature of ice=20-0=20

Specific heat of water=1cal/g°C

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1000x1x36=mx79.7x20

36000=1594xm

Divide both sides by 1594

36000 ➗ 1594=1594xm ➗ 1594

22.6=m of ice

m of ice=22.6g

8 0
2 years ago
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