______ Cells Converts Solar Energy Into Electrical Energy?
______ Cells Converts Solar Energy Into Electrical Energy?
Rotory | |
Galvanic | |
Non Of These | |
Photovoltaic |
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
______ Cells Converts Solar Energy Into Electrical Energy?
Rotory | |
Galvanic | |
Non Of These | |
Photovoltaic |
Zero Error Of The Instrument Is A Type Of______
Systematic Error | |
Classified Error | |
Random Error | |
Personal Error |
X-Rays Are Similar In Nature To______
Positive Rays | |
Γ-Rays | |
Beta Rays | |
Cathode Rays |
X-Rays Are Electromagnetic Waves Like______
Light Waves | |
Microwaves | |
Γ-Rays | |
Heat Waves |
X-Rays Are Diffracted By A Crystal But Not By A Diffraction Grating Because______
The Ions In A Crystal Are Well Arranged | |
The Wavelengths Of X-Rays Are Of The Same Order Of Magnitude As The Separation Between Atoms In A Crystal | |
The Lines In A Diffraction Grating Cannot Reflect X-Rays. | |
The Penetration Power Of X-Rays Is High In A Diffraction Grating |
X-Ray Are______
Radio Isotopes | |
High Energy Electrons | |
High Energy Photons | |
Of Unknown Nature |
Work Has The Dimension As That Of Same As That Of______
Torque | |
Linear Momentum | |
Power | |
Angular Momentum |
Work Done Will Be Maximum If The Angle Between The Force F And Displacement D Is______
9 | |
18 | |
0° | |
45° |
Work Done On The Body Equals To The ______
Change In Its P.E Always | |
Change In Its K.E Always | |
Change In Its K.E And Change In Its P.E | |
Neither Change In K.E And Nor Change In Its P.E |
Work Done By Variable Force Is Determine By Dividing______
Force Into Small Interval | |
Displacement Into Small Interval | |
Both Force And S | |
Force Into Small And Displacement Into Large Intervals |
Work Done By The Force Of Friction Is______
Always Negative | |
Positive Only For Large Frictional Force | |
Always Positive | |
Positive Only For Small Frictional Force |
With Increase In Temperature The Electrical Conductivity Of Intrinsic Semi Conductor______
First Increases Then Decreases | |
Remains Same | |
Decreases | |
Increases |
Why Should A Resistance Be Introduced In A Circuit In Series Deliberately ?
Just To Give A Good Look To Circuit | |
To Decrease Current | |
To Increase Current | |
To Control Current |
Why Gamma Rays Are Used To Kill Bacteria To Sterilize Surgical Equipment Etc ?
Chargeless | |
Massless | |
All Of Above | |
Highly Penetrating |
Why Ballistic Missile Fails In Some Circumstances Of Precision ?
Due To Angle Of Projection | |
Due To Air Resistance | |
All Of These | |
Due To Their Shape |
Who Were The Pioneers Of Physics?
Greek | |
Egyptians | |
Latin | |
Persians |
Who Discovered The Inverse Square Law For Gravity ?
Plank | |
Einstein | |
Galileo | |
Newtons |
While Measuring The Unknown Resistance The Help Of Slide Wire Bridge A Greatest Accuracy Can Be Achieved When______
A Steady Voltage Cell Is Used | |
The Balance Point Is Close To The Middle Of The Wire | |
A Most Sensitive Galvanometer Is Used | |
A High Resistance Box Is Used In One Of Its Gap |
Which Shows The Correct Relation Between Time Of Flight T And Maximum Height H ?
H=8t2/G | |
H=8g/T2 | |
H=Gt2/8 | |
H=Gt2 |
Which Quantity Is A State Function______
Heat Supply | |
Volume | |
Pressure | |
Internal Energy |
Which Phenomena Can Be Applied To Estimate The Velocity Of Star With Respect To Earth ______
Dopplers Effect | |
Beats Phenomena | |
Interference Of Waves | |
All Of These |
Which One Of The Following Radiations Possesses Maximum Velocity ?
Γ-Rays | |
All Of Above Have The Same Speed | |
Α-Rays | |
Î’-Rays |
Which One Of The Following Radiations Has The Strongest Photon?
T.V Waves | |
Γ-Rays | |
X-Rays | |
Microwaves |
Which One Of The Following Radiation Possesses Maximum Penetrating Power ?
B-Rays | |
All Have The Equal Penetrating Powe | |
X-Rays | |
Γ-Rays |
Which One Of The Following Properties Of Light Does Not Change With The Nature Of The Medium ?
Frequency | |
Velocity | |
Wavelength | |
Amplitude |