Two Vectors Are A = 3i^+2j^ -K^& B = 3i^-2j^ +K^ , Then______
Two Vectors Are A = 3i^+2j^ -K^& B = 3i^-2j^ +K^ , Then______
B Is Anti-Parallel To A | |
B Is Perpendicular To A | |
B Is A Negative Vector Of A | |
B Has A Negative Magnitude |
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۔
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physics mcqs with answers
Two Vectors Are A = 3i^+2j^ -K^& B = 3i^-2j^ +K^ , Then______
B Is Anti-Parallel To A | |
B Is Perpendicular To A | |
B Is A Negative Vector Of A | |
B Has A Negative Magnitude |
Two Vectors A And B Are Making Angle Θ With Each Other. The Scalar Projection Of Vector B On Vector A Is Written As______
A.B/A | |
A.Cosθ | |
Both A And B Are Correct | |
A.B/B |
Two Sources Of Light Are Coherent If They Emit Rays Of______
Same Wavelength | |
Same Amplitude And Wavelength | |
Same Amplitude Of Vibration | |
Same Wave Length With Constant Phase Difference |
Two Parallel Wires Carrying Currents In The Opposite Directions______
Repel Each Other | |
Have No Effect Upon Each Other | |
They Cancel Out Their Individual Magnetic Fields | |
Attract Each Other |
Two Identical Coaxial Circular Loops Carry Equal Currents In The Same Direction. If The Loops Approach Each Other The Current In______
Each Remains The Same | |
Each Increase | |
Each Decrease | |
One Increases Whereas That In The Other Decreases |
Two Fog Droplets Have Radius 2:3 Their Terminal Velocities Are______
2:09 | |
4.3 | |
4:09 | |
4:06 |
Two Convex Lenses Of Equal Focal Length F Are Placed In Contact The Resultant Focal Length Of The Combination Is______
F/2 | |
2 F | |
Focus | |
Zero |
Triple Point Of Water Is______
273k At 61.6 Kpa | |
273°C At 6.11 Kpa | |
273.16k At 750 Kpa | |
273.16°C At 0.611 Kpa |
Transuranic Elements Have An Atomic Number______
Greater Than 102 | |
Greater Than 92 | |
Greater Than 72 | |
Greater Than 82 |
Total Uncertainty, In The Result Obtained From The Subtraction Of Two Measurements, Is Equal To______
Division Of Their Absolute Uncertainties | |
Sum Of Their Absolute Uncertainties | |
The Difference Of Their Absolute Uncertainties | |
The Product Of Their Absolute Uncertainties |
Total Number Of Series In Hydrogen Spectrum Is______
Six | |
Three | |
Five | |
Four |
Total Distance Travelled By A Bob Of The Simple Pendulum In One Vibration Is Equal To______
Amplitude | |
Square Of The Amplitude | |
2 X Amplitude | |
4 X Amplitude |
Torque Is Defined As______
Cross Product Of Position Vector And Force | |
All A, B And C Are Correct | |
Product Of Force And Moment Arm | |
Turning Effect Of Force |
Torque Acting On A Body Determines______
Direction Of Motion Of The Body | |
Angular Acceleration | |
Acceleration | |
Linear Acceleration |
To Reduce The Uncertainty In The Timing Experiment______
Conduct At Room Temperature | |
Both A And C | |
Highly Precise Instrument | |
Count Number Of Vibration |
To Obtain An N-Type Semiconductor Germanium Crystal It Must Be Doped With Foreign Atoms Whose Valency Is______
2 | |
5 | |
4 | |
3 |
To Obtain A P-Type Semi-Conductor Si Crystal Must Be Doped With Foreign Atoms Whose Valency Is______
2 | |
3 | |
5 | |
4 |
To Find The R.M.S Value Of An Alternating Current Mathematically We Need To Have ______
Square Root Of I2 | |
Square Root Of Mean Value Of I2 | |
Square Of 1/2 | |
Mean Value Of I2 |
Time Rate Of Change Of Momentum Is Equal To______
Velocity | |
Impulse | |
Force | |
Both A And C |
Three Students Measured The Length Of A Needle With Meter Rod And Recorded As : (I) 0.2145m (Ii) 0.21m (Iii) 0.214m Which One Is A Correct Record ?
Only (Iii) | |
Both (I) And (Ii) | |
Only (I) | |
Only (Ii) |
Three Equal Resistors Connected In Series With A Source Of E M F Together Dissipate 10 W Of Power Each.
100w | |
90w | |
120w | |
40 W |
Three Coplanar Forces Acting On A Body Keep It In Equilibrium. They Should Therefore Be______
Parallel | |
Concurrent | |
Non-Concurrent | |
Non-Parallel |
Three Bulbs Are Rating 40w 60w And 100w Designed To Work On 220v Mains.
100 W Blub | |
60 W Blub | |
All Will Burn Equally Brightly | |
40 W Bulb |
The______Branch Of Physics Deals With Nuclear Particles Such As Neutrons, Protons And Nuclear?
Structure Is Called | |
Plasma Physics | |
E. Particle Physics | |
Solid State Physics |
Thermocouples Convert______
Heat Energy Into Electrical Energy | |
Heat Energy Into Mechanical Energy | |
Mechanical Energy Into Heat Energy | |
Heat Energy Into Light Energy |