1
JEE Advanced 2013 Paper 1 Offline
Numerical
+4
-0
The atomic masses of He and Ne are 4 and 20 a.m.u., respectively. The value of the de Broglie wavelength
of He gas at –73oC is “M” times that of the de Broglie wavelength of Ne at 727oC. M is
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2
IIT-JEE 2011 Paper 1 Offline
Numerical
+2
-0
The maximum number of electrons that can have principal quantum number, n = 3, and spin quantum number, ms = − 1/2 , is
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3
IIT-JEE 2011 Paper 1 Offline
Numerical
+4
-0
The work function
( φ )
of some metals is listed below. The number of metals which will show
photoelectric effect when light of 300 nm wavelength falls on the metal is
| Metal | Li | Na | K | Mg | Cu | Ag | Fe | Pt | W |
|---|---|---|---|---|---|---|---|---|---|
| Ф (eV) | 2.4 | 2.3 | 2.2 | 3.7 | 4.8 | 4.3 | 4.7 | 6.3 | 4.75 |
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4
IIT-JEE 1994
Numerical
+3
-0
Find out the number of waves made by a Bohr electron in once complete revolution in its 3rd orbit?
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Questions Asked from Structure of Atom (Numerical)
Number in Brackets after Paper Indicates No. of Questions
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