پاک اسٹڈی لائبریری اپنی خدمات کو بہتر کرنے کے لئے نئے سوفٹ وئیر انسٹال کررہی ہے ۔ اس لئے آئندہ کچھ دن آپ کو کچھ صفحات تک رسائی میں مشکلات کا سامنا ہوسکتا ہے ۔ جس کے لئے ہم معذرت خواہ ہیں۔
Pak Study Library is installing new software to improve its services. herefore, in the next few days, you may face difficulties in accessing some pages. sorry for the inconvenience.
physics mcqs with answers
In An Electron Microscope, We Use Energetic Particles Because Of______
Penetrating Power Is High | |
Kinetic Energy Is Large | |
Wavelength Is Very Short | |
All The Above Reasons |
In An Angular Motion, Newtons Second Law Of Motion Is______
Στ = I Α | |
F=Ma | |
All Above | |
F=Τp/It |
In A Semiconductors The Charge Carriers Are ______
Holes Only | |
Electrons Only | |
Electron And Holes Both | |
All Of The Above |
In A Plane Polarized Light ______
Vibration In All Direction | |
Vibration In Two Mutually Perpendicular Directions | |
Vibration Take Place In A Direction Perpendicular To The Direction Of Propagation Of Light | |
No Vibration At All |
In A Photoelectric Effect Monochromatic Light Is Incident On A Metal Surface.
Becomes Double | |
First Increases Then Decrease Because Of The Curvilinear Graph | |
Becomes Half | |
Remains Same |
In A Multi Range Ammeter As The Range Increases ______
Shunt Value Increases | |
Shunt Value Decreases | |
Shunt Value Remains The Same | |
None Of The Above |
In A Half-Wave Rectifier The R.M.S. Value Of The A.C. Component Of The Wave Is______
Equal To D.Value | |
Zero | |
More Than D.Value | |
Less Than D.Value |
In A Clinical Thermometer The Mercury In The Capillary Tube Does Not Contract Once Removed From The Patient Because______
The Capillary Tube Is Very Narrow | |
The Amount Of Mercury Use Is Very Small | |
Mercury Takes A Long Time To Contract | |
The Capillary Tube Has A Small Constriction Near The Bulb |
Image Of An Object 5 Mm High Is Only 1 Cm High. Magnification Produced By Lens Is______
0.5 | |
2 | |
1 | |
0 |
If We Whirl A Stone At The End Of A String In The Vertical Circle, It Is Likely To Break When The Stone Is______
At The Highest Point | |
At Any Point During Motion | |
At The Lowest Point | |
At The Point Where Gravity Is Not Acting |
If Velocity Is Doubled Then______
Momentum Increases 2 Times And K.E Increases Constant | |
Momentum Increases 2 Times And K.E Increases 4 Time | |
Momentum Increases 4 Times And K.E Increases 2 Times | |
Momentum And K.E. Remain Same |
If The Wavelength Of Incident Radiation Is Increased In Photoemission Then______
The Minimum Kinetic Energy Of The Photoelectrons Increases | |
The Average Kinetic Energy Of The Photoelectrons Decreases | |
The Maximum Kinetic Energy Of The Photoelectrons Increases | |
The Minimum Kinetic Energy Of The Photoelectrons Decreases |
If The Volume Of A Gas Is Held Constant And We Increase Its Temperature Then______
Its Pressure Rises | |
Any Of Above | |
Its Pressure Is Constant | |
Its Pressure Falls |
If The Pressure Of A Given Gas Is Held Constant Its Density Is Inversely Proportional To Its Absolute Temperature.
Charles Law | |
Boyles Law | |
Avagadros Law | |
Ideal Gas Law |
If The Plane Of The Rectangular Coil Is Parallel To The Magnetic Field (I.E Radial Magnetic Field) The Torque On The Coil Is______
Tanφ | |
Cosφ | |
Τ = Niab | |
Sinφ |
If The Length Of The Second Pendulum Becomes Four Times, Then Its Time Period Will Become______
4 Times | |
6 Times | |
8 Times | |
2 Times |
If The Density Of Atoms Remain Same Along Any Direction In A Crystal Is Called______
Cleavage | |
Homogeneity | |
Isotropy | |
Symmetry |
If Stretching Force T Of Wire Increases, Then Its Frequency ______
Increases | |
Remains The Same | |
Decreases | |
Any Of Above |
If One Or More Of The Neutrons Emitted During Fission Cab Be Used To Build Up Further Fission Then The Reaction Is Self-Sustained And Is Known As ______
Chemical Reaction | |
Fission Reaction | |
Fusion Reaction | |
Chain Reaction |
If N Number Of The Photon Is Striking On A Metal Surface Then Total Momentum Exerted Is______
None | |
0 | |
N | |
P |
If Moon Radius Is 1600 Km And G On Its Surface Is 1.6 Ms-2 Then The Escape Velocity On The Moon Is ______
50.6 Ms-1 | |
1600 Ms-1 | |
2263ms-1 | |
71.6 Ms-1 |
If East, West, North, South, Up And Down Are Representing The Direction Of Unit Vectors, Then East X South Has The Direction Along______
North | |
West | |
Down | |
Up |
If Capacitance Of L-C Circuit Is Made Four Times Then Frequency Of The Circuit Becomes______
Four Times | |
Twice | |
One Half | |
None |
If An Object Is Placed Away From 2f Of A Converging Lens Then The Image Will Be______
Virtual And Erect | |
Virtual | |
Real And Erect | |
Real And Inverted |
If A=B, Which Of The Following Is Not Correct ?
|A| = |B| | |
Ab^ = Ba^ | |
|A^| = |B^| | |
A.B = A^ B^ |