All categories

3 years ago

What is the difference in light that is refracted compared to the light that is reflected?

Physics

2 answers:

Kruka [31]3 years ago

8 0

Answer:

Reflection is when light bounces off an object, while refraction is when light bends while passing through an object.

AVprozaik [17]3 years ago

3 0

What is the difference between light and reflection ?

Reflection is when light bounces off an object, while refraction is when light bends while passing through an object. When you look at a mirror the light bounces of the mirror from different angles, so you can see your reflection.

You might be interested in

How are the words season,equinox and solstice related ??

Rasek [7]

They are all related to what time of year it is.

8 0

3 years ago

Read 2 more answers

A capacitor is formed from two concentric spherical conducting shells separated by vacuum. The inner sphere has radius 10.5 cm,

Step2247 [10]

Answer:

$U = 2.91 *10^{-5} J$

Explanation:

energy density can be obtained as

$U = \frac{1}{2}\epsilon_o E^{2}$

Where,

E is electric field $= \frac{kQ}{R^{2}}$

K COLOUMB CONSTANT =8.99*10^{9} N -m2 /C2

Q is charge = CV

C is capacitance = $4\pi \epsilon_o \frac{r_1 r_2}{r_2 -r_1}$

$=4\pi *8.85*10^{-12} [\frac{10.5*16.5}{16.5 -10.5}]$

$= 3.21*10^{-9} F$

$Q = 3.21*10^{-9} *150 = 4.81*10^{-7] C$

for r = 10.6 cm

$E = \frac{8.99*10^{9}*3.21*10^{-9}}{0.106^{2}}$

E = 2568.34 N/C

$U = \frac{1}{2}\epsilon_oE^{2}$

$U = \frac{1}{2}*8.85*10^{-12} *2568.34 ^2$

$U = 2.91 *10^{-5} J$

8 0

3 years ago

A 55.0 kg bungee jumper steps off a bridge with a light bungee cord tied to her and to the bridge. The unstretched length of the

lianna [129]

Answer:

$69.06\ \text{N/m}$

Explanation:

m = Mass of bungee jumper = 55 kg

g = Acceleration due to gravity = $9.81\ \text{m/s}^2$

h = Height at the bottom = 40 m

k = Spring constant

x = Displacement of bungee cord = 25 m

Applying the principle of conservation of energy to the system we have

$mgh=\dfrac{1}{2}kx^2\\\Rightarrow k=\dfrac{2mgh}{x^2}\\\Rightarrow k=\dfrac{2\times 55\times 9.81\times 40}{25^2}\\\Rightarrow k=69.06\ \text{N/m}$

The spring constant of the bungee cord is $69.06\ \text{N/m}$ .

5 0

3 years ago

The δe of a system that releases 12.4 j of heat and does 4.2 j of work on the surroundings is __________ j.

Vedmedyk [2.9K]

The answer for this problem is clarified through this, the system is absorbing (+). And now see that it uses that the SURROUNDINGS are doing 84 KJ of work. Any time a system is overshadowing work done on it by the surroundings the sign will be +. So it's just 12.4 KJ + 4.2 = 16.6 KJ.

5 0

4 years ago

Why does a solid change to liquid when heat is added?

Komok [63]

Answer:

c.the spacing between particles increases

3 0

3 years ago

Read 2 more answers