11th Class Physics MCQS
Such process which increases the energy of electrical signals of sound fed by the microphone and sends them to the loudspeaker is called:
An amplifier
A tap recorder
a loptop
a television
How many arrangements of the letters of the word MATHEMATICS, taken alltogethers, can be made
284
58397
4989600
923881
Which of the following molecule have double covalent bond:
N2
H2
Ch4
O2
An electrons microscopes employs which to one of
Electrons can be focused by a magnetic field
the following principles?
Electron have a wave nature
All of above
Electrons can be focused by by an electric field
Which of the following orbital is not possible:
2d
3p
1s
4s
What was the reaction of Non muslims on the Objective Resolution?
Highly condemned by the non muslim
Highly appreciated by the non muslim
None of these
Soyabeans have been made resistant to a common:
Herbicide
Fungicide
Pesticide
Insecticide
The orbital of a particle moving under a contral force is necessarily a:
Plane curve
None of these
space vector
As compared to pure atomic orbitals the hybids orbitals have:
Higfh energy
Same energy
Low energy
Variable energy
Which of the following molecule has an angle of 104.5°:
BeCl2
BeCl
BF3
NH3
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