Compton wavelength Puns

When there is a scattering angle of 0, many graphs and data show that no wavelength shift has occurred. Is this because at an angle of 0, no collision has occurred therefore no wavelength shift? i am not sure

The question is:

A Photon of wavelength 80.0pm strikes an electron at rest and imparts 1.95x10^-16 J of energy to the electron. The wavelength of the departing photon is:

I've tried solving for momentum, so "p=e/c". Then I used "p" in "λ=h/p." But I think this is just solving for the wavelength and not the final wavelength.

I think the way to do it is somehow using the formula " Δλ=h/mc(1-cos Θ )"

But I'm confused on how I get theta, or if I even need it?

Any help is appreciated, thanks!

I'm a Bioinfo Major (and these are conceptual problems, not HW problems, I have). Please be gentle with your explanation as its been a while since I last studied fusis. Some specific problems I have are:

• What happens to the photon, or the energy/wavelength thereof in Photoelectric Effect (PE) after it gives its energy to eject the electron in the outer shell of the target metal atom in the foil?
• Can we see PE in Graphite and Compton Effect (CE) with a thin metal foil?
• Many websites online say these effects occur are different energies carried by incident photons, if so why exactly is this happening?

Do your worst!

For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.

I said "hey look, an escaPEA"

No one near me but it didn't half make me laugh for a good hour or so!

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It really does, I swear!

They’re on standbi

Pilot on me!!

Dad jokes are supposed to be jokes you can tell a kid and they will understand it and find it funny.

This sub is mostly just NSFW puns now.

If it needs a NSFW tag it's not a dad joke. There should just be a NSFW puns subreddit for that.

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What did 0 say to 8 ?

" Nice Belt "

So What did 3 say to 8 ?

" Hey, you two stop making out "

When I got home, they were still there.

I won't be doing that today!

You take away their little brooms

This morning, my 4 year old daughter.

Daughter: I'm hungry

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She had no idea what was going on but I finally did it.

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There hasn't been a post all year!

It’s pronounced “Noel.”

After all his first name is No-vac

What, then, is Chinese rap?

Edit:

Notable mentions from the comments:

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There hasn't been a single post this year!

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Bob

So that I could frequently say, "I am going to walk 5 miles now."

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Just to clarify, 12345678

Me grabbing a soda from my (what I thought was) half full 12pk...

Notices there's only 2;

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I'm not ashamed to admit the look on her face was glorious.

Nothing, it just waved

I was just sitting there doing nothing.

“BOOM”?!

"That's what they're fighting about."

free