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Deffense [45]
2 years ago
10

Beyond what point must an object be squeezed for it to be a black hole? A : Schwarzschild Radius. B : Crackpoint. C : Event Hori

zon. D : Hawking Boundary.
Physics
2 answers:
7nadin3 [17]2 years ago
8 0

Answer:

A:Schwarzschild radius

djverab [1.8K]2 years ago
7 0

Answer:

A.

Explanation:

An object that is below its Schwarrzfield radius is a black hole. For our Sun its about 3 km.

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Should the hypothesis always be correct for a conclusion
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Read 2 more answers
If the index of refraction for a certain glass is 1.5, and the angle of refraction is 15 degrees for a ray of light
LiRa [457]

Answer:

\theta_i = 23^o

Explanation:

The refractive index of a medium is given by the following formula:

\eta = \frac{Sin\theta_i}{Sin\theta_r}

where,

η = refractive index = 1.5

\theta_i = angle of incidence = ?

\theta_r = angle of refraction = 15°

Therefore,

1.5 = \frac{Sin\theta_i}{Sin15^o}\\\\Sin\theta_i=(1.5)Sin15^o\\\\\theta_i = Sin^{-1}(0.388)\\\\

\theta_i = 23^o

4 0
3 years ago
A red laser (740 nm) shines on a double slit (slit separation = 0.165 mm). What is the angle of the fourth order maximum (that i
SVEN [57.7K]

Answer:

The angle of the fourth order maximum is 1.027 degrees.

Explanation:

It is given that,

Wavelength of red laser, \lambda=740\ nm=740\times 10^{-9}\ m

Slit separation, d=0.165\ mm= 0.000165\ m

We need to find the angle of the fourth order maximum. For maximum, the equation is given by :

d\ sin\theta=n\lambda

sin\theta=\dfrac{n\lambda}{d}

sin\theta=\dfrac{4\times 740\times 10^{-9}}{0.000165}

\theta=1.027^{\circ}

So, the angle of the fourth order maximum is 1.027 degrees. Hence, this is the required solution.

4 0
3 years ago
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