Physics

ans c

Basically find Energy of each state in terms of n

then energy of red light = energy of transition of electron from n=1 (ground) to n=n

Find alpha in terms of n^2-1 and then just insert values of n

Alpha decay is a 2 body process, so it takes energy proportional to reduced mass

however, in beta decay, there is a neutrino as well

hence in beta decay, there is a spectrum of energy of beta particle from 0 to all of it

A

15

5

friction works WITH gravity

ans is 2

3

this is easy bro

B

a

ans is 4

Ans 200

a

Only B

30

basically flow rate from both taps is different

only b

ad

keep in mind that the top one has 2 interface changes, the bottom only has 1

its a fucking yoyo so it goes down and then comes up

so D

a

a,c

a, d

a,c

1

b

ans is 2

6.75

ans is 0.08 to 0.09

20, 10

2