Question

1 joule in erg
1ev in joule
1MeV in Joule
1erg in joule​

Answer 1

Answer:

$\huge\underline\green{\mathcal Answer}$

$\large{\mathcal 1J={10}^{7}erg}$

$\large{\mathcal 1eV=1.6×{10}^{-19}J}$

$\large{\mathcal 1MeV=1.6×{10}^{-13}J}$

$\large{\mathcal 1erg={10}^{-7}J}$

✌️@14riyaz14✌️

Answer 2

Answer :

1) As we know

1 erg = g cm²/s² .... eq (1)

1 Joule = Kg m²/s² .... eq (2)

So ,

erg / joule = g cm² / kg m² (upon dividing the both equations )

erg / joule = 1 / 10^{7)

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2) ev is the energy of unit that directly equals to 1.6 × 10 ^ -19 Joules itself ..

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3) 1 Mev = 1 megaelectronvolt = 1,000,000 eV.

so 1 ev = 1.6× 10 ^ -19

Hence,

1 Mev = (1.6× 10 ^6) × (1.6× 10 ^ -19 )

So we get ,

1.6× 10 ^ -13 Joules

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4)

1 Joule = Kg m²/s² .... eq (1)

1 erg = g cm²/s² .... eq (2)

So upon solving the equation ..

We get ,

Joule / erg = 1 / 10^(-7)

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