1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
Uncertainty in position of a minute particle of mass 25 g in space is 10-5 m. What is the uncertainty in its velocity (in ms-1) (h = 6.6 $$\times$$ 10-34 Js)
A
2.4 $$\times$$ 10-34
B
0.5 $$\times$$ 10-34
C
2.1 $$\times$$ 10-28
D
0.5 $$\times$$ 10-23
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
In a hydrogen atom, if energy of an electron in ground state is -13.6 eV, then that in the 2nd excited state is
A
-1.51 eV
B
-3.4 eV
C
-6.04 eV
D
-13.6 eV
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