12th Class FSc Part 2 Physics Chapter Wise Online MCQ Test With Answer PDF

Physics FSC Part 2 Online MCQ's Test

Sr. #	Questions	Answers Choice
1	_____ has the largest de Broglie wavelength at same speed.	Proton Alpha particle Carbon atom Electron
2	If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of.	3.40 eV 10.20 eV 13.6 eV 3.8 eV
3	Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be.	0.106 nm 0.212 nm 0.053 nm 0.53 x 10<sup><a href="null">-10</a></sup> nm
4	The energy of 4th Orbit in hydrogen atom is.	-2.51 eV -3.50 eV -13.60 eV -0.85 eV
5	The first orbit in the hydrogen atom has a radius.	0.53 nm 0.053 nm 0.0053 nm 0.00053 nm
6	Earth orbital speed is	10 km/s 20 km/s 30 km/s 40 km/s
7	The radius of 10th orbit in hydrogen atom is.	0.053 nm 0.53 nm 5.3 nm 53 nm
8	The unit of Rh is.	ms-1 m m<sup>2</sup> m<sup>-1</sup>
9	The longest wavelength of Paschen series is.	656 nm 1094 nm 1875 nm 2000 nm
10	Paschen series lies in the	Far ultraviolet region Visible region Ultraviolet region Inferred region
11	Hydrogen atom spectrum does not lie in	Ultraviolet region Visible region Infrared region X ray region
12	Which of the following series of hydrogen spectrum lies in ultra violet region.	Lyman sereis Paschen series Balmar series Bracket series
13	First spectral series of hydrogen atom was discovered by	Lyman Rydberg Balmer Paschen
14	The line radiations emitted from by hydrogen filled discharge tube can be analyzed into.	Band spectrum Line spectrum Continuous spectrum Absorption spectrum
15	Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their.	Energy Mass Wave length Momentum
16	For Paschen series, the value of 'n' starts from	2 4 6 8
17	Which series lies in the ultraviolet region.	Balmer series Bracket series Ptund series Lyman series

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