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