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3 years ago

1 pc

Physics

1 answer:

nlexa [21]3 years ago

6 0

Answer:

A spectroscope

Explanation:

A spectroscope is used by scientists to separate a source of light ( usually white light ) into its various compositions. i.e it is used to determine the chemical makeup of a visible source of light. hence to determine whether the red light produces photo electrons, which is a chemical makeup of visible light a spectroscope should be added to the circuit.

photo electrons are electrons emitted/ejected from a surface usually metallic surface in the form of a photoelectric effect when a source of light is shines on the surface

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Explanation:

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Why does a mountain of uranium not explode as a bomb?

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Answer:

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3 years ago

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An electron moving in the direction of the +x-axis enters a magnetic field. If the electron experiences a magnetic deflection in

Vaselesa [24]

Answer:

<h2>As per right hand rule the force direction magnetic field is along - z axis</h2>

Explanation:

As we know that the force on the moving charge due to magnetic field is given as

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here we know that

$\vec v = v\hat i$

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3 years ago

We go out to sunbathe on a warm summer day. If we soak up 80 British thermal units per hour [BTU/h] of energy, how much will t

Jlenok [28]

Answer:

0.62127°C

Explanation:

$1\ BTU=1055\ J$

$80\ BTU/h=80\times 1055=84400\ J/h$

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$Q=84400\times 2\\\Rightarrow Q=168800\ J$

m = Mass of person = 65000 g

c = Specific heat of water = 4180 J/kg°C

$\Delta T$ = Change in temperature

Heat is given by

$Q=mc\Delta T\\\Rightarrow 168800=65\times 4180\times \Delta T\\\Rightarrow \Delta T=\dfrac{168800}{65\times 4180}\\\Rightarrow \Delta T=0.62127\ ^{\circ}C$

The increase in temperature will be 0.62127°C

7 0

3 years ago