Answer:
If the absorbed beam is monochromatic (one wavelength) then it excites the H atom to some state n.
When that state decays, some of the atoms may decay to state 1, others to state 2, and still others to state 3
The net energy emitted in such a case would depend on:
n -1, n - 2, n - 3 which would produce 3 different wavelengths
C because
You have to have a question then research and arrive to a conclusion
Answer:
recycling aluminum products
Explanation:
I I took this test hope this out and on the test I got this correct
Initially sled is moving with uniform velocity which means the net force must be balanced on the sled

So it is given that applied force on the sled is 200 N and sled is not accelerating so friction force must be 200 N.

Now suddenly it starts with 600 N applied force due to which it will accelerate and this can calculated by Newton's II law




So in this case the sled ill start accelerating with acceleration 