Home/Class 12/Physics/

Question and Answer

The earth takes \(24\;\text{h}\)  to rotate once about its axis. How much time does the sun take to shift by \(1^0\)  when viewed from the earth?
loading
settings
Speed
00:00
02:07
fullscreen

Question
PhysicsClass 12

The earth takes \(24\;\text{h}\)  to rotate once about its axis. How much time does the sun take to shift by \(1^0\)  when viewed from the earth?

Answer

Time taken by Earth in one complete rotation \(=24\;\text{h}\)
\(\mathit{i.e}\)  time taken by \(360^0\)  shift \(=24\;\text{h}\)
\({\therefore}\) time taken for \(1^0\)  shift
\(=\frac{24}{360}\)  
\(=\frac 1{15}\;\text{h}\)  
\(=4\;\text{min}\)  
To Keep Reading This Answer, Download the App
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play
To Keep Reading This Answer, Download the App
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play
Correct47
Incorrect0
Still Have Question?
Ask Your QuestionFind More Answer
Watch More Related Solutions
Consider the bcc unit cells of the solids \(1\) and \(2\) with the position of atoms as shown below. The radius of atom \(B\) is twice that of atom \(A\). The unit cell edge length is \(50\% \) more in solid \(2\) than in \(1\). What is the approximate packing efficiency in solid \(2\)?
（ ）
A. \(65\%\)
B. \(90\%\)
C. \(75\%\)
D. \(45\%\)
Consider the bcc unit cells of the solids \(1\) and \(2\) with the position of atoms as shown below. The radius of atom \(B\) is twice that of atom \(A\). The unit cell edge length is \(50\% \) more in solid \(2\) than in \(1\). What is the approximate packing efficiency in solid \(2\)?
（ ）
A. \(65\%\)
B. \(90\%\)
C. \(75\%\)
D. \(45\%\)
Chemistry|Class 12
What will be the resultant pH when \(200 mL \) of an aqueous solution of \(HCl \ (pH=2.0)\) is mixed with \(300 mL\) of an aqueous solution of \( NaOH \ (pH=12.0)\)
What will be the resultant pH when \(200 mL \) of an aqueous solution of \(HCl \ (pH=2.0)\) is mixed with \(300 mL\) of an aqueous solution of \( NaOH \ (pH=12.0)\)
Chemistry|Class 12
A mixture of \(H_{2}C_{2}O_{4}\) (oxalic acid) and \(NaHC_2O_4\) weighing \(2.02g\) was dissolved in water and the solution made up to one litre. Ten millilitres of the solution required \(3.0mL\) ,of \(0.1N\) sodium hydroxide solution for complete neutralisation. In another experiment, \(10.0mL\) , of the same solution, in hot dilute sulphuric acid medium, required \(4.0mL\) of \(0.1N\) potassium permanganate solution for complete reaction.Calculate the amount of \(H_{2}C_{2}O_{4}\) and \(NaHC_2O_4\) in the mixture.
A mixture of \(H_{2}C_{2}O_{4}\) (oxalic acid) and \(NaHC_2O_4\) weighing \(2.02g\) was dissolved in water and the solution made up to one litre. Ten millilitres of the solution required \(3.0mL\) ,of \(0.1N\) sodium hydroxide solution for complete neutralisation. In another experiment, \(10.0mL\) , of the same solution, in hot dilute sulphuric acid medium, required \(4.0mL\) of \(0.1N\) potassium permanganate solution for complete reaction.Calculate the amount of \(H_{2}C_{2}O_{4}\) and \(NaHC_2O_4\) in the mixture.
Chemistry|Class 12
In the reaction
\( {CH}_{3}{CH}_{2}I \xrightarrow{alc.KOH}\;X\stackrel{{Br}_{2}}{\xrightarrow{} }Y\stackrel{KCN}{\xrightarrow{} }Z\) is
(a) \( {CH}_{3}{CH}_{2}CN\)
(b) \( {CNCH}_{2}{CH}_{2}CN\)
(c) \( {BrCH}_{2}{CH}_{2}CN\)
(d) \( BrCH=CHCN\)
In the reaction
\( {CH}_{3}{CH}_{2}I \xrightarrow{alc.KOH}\;X\stackrel{{Br}_{2}}{\xrightarrow{} }Y\stackrel{KCN}{\xrightarrow{} }Z\) is
(a) \( {CH}_{3}{CH}_{2}CN\)
(b) \( {CNCH}_{2}{CH}_{2}CN\)
(c) \( {BrCH}_{2}{CH}_{2}CN\)
(d) \( BrCH=CHCN\)
Chemistry|Class 12
A short magnet is moved along the axis of a conducting loop. Show that the loop repels the magnet if the magnet is approaching the loop and attracts the magnet if it is going away from the loop.

A short magnet is moved along the axis of a conducting loop. Show that the loop repels the magnet if the magnet is approaching the loop and attracts the magnet if it is going away from the loop.

Physics|Class 12
Solve the following for x: \(\sin ^{-1}(\frac {x}{2})+\cos ^{-1}x=\frac {\pi }{6}\)
Solve the following for x: \(\sin ^{-1}(\frac {x}{2})+\cos ^{-1}x=\frac {\pi }{6}\)
Math|Class 12
Freon\( -12\) is commonly used as
(a) an insecticide
(b) a refrigerant
(c) a solvent 
(d) fire extinguisher
Freon\( -12\) is commonly used as
(a) an insecticide
(b) a refrigerant
(c) a solvent 
(d) fire extinguisher
Chemistry|Class 12
A sample of \(AgCl\) was treated with \(5.00\) mL of \(1.5M\) \(Na_{2}CO_{3}\) solution to give \(Ag_{2}CO_{3}\) . The remaining solution contained \(0.0026\) g of \(Cl^{-}\) ions per litre. Calculate the solubility product of \(AgCl\). \([K_{sp} (Ag_{2}CO_{3})=8.2\times 10^{-12}]\)
A sample of \(AgCl\) was treated with \(5.00\) mL of \(1.5M\) \(Na_{2}CO_{3}\) solution to give \(Ag_{2}CO_{3}\) . The remaining solution contained \(0.0026\) g of \(Cl^{-}\) ions per litre. Calculate the solubility product of \(AgCl\). \([K_{sp} (Ag_{2}CO_{3})=8.2\times 10^{-12}]\)
Chemistry|Class 12
Light from a point source in air falls on a spherical glass surface\((n=1{\cdot}5\) and radius of curvature \(=20\;\text{cm})\). The distance of the light source from the glass surface is \(100\;\text{cm}\). At what position the image is formed?
Light from a point source in air falls on a spherical glass surface\((n=1{\cdot}5\) and radius of curvature \(=20\;\text{cm})\). The distance of the light source from the glass surface is \(100\;\text{cm}\). At what position the image is formed?
Physics|Class 12
Figure shows a rod PQ of length \(20.0\ cm\) and mass \(200\ g\) suspended through a fixed point O by two threads of lengths \(20.0\ cm\) each. A magnetic field of strength \(0.500\ T\) exists in the vicinity of the wire PQ, as shown in the figure. The wired connecting PQ with the battery are loose and exert no force on PQ. A current of \(2.0\ A\) is established when the switch S is closed. Find the tension in the threads now.
Figure shows a rod PQ of length \(20.0\ cm\) and mass \(200\ g\) suspended through a fixed point O by two threads of lengths \(20.0\ cm\) each. A magnetic field of strength \(0.500\ T\) exists in the vicinity of the wire PQ, as shown in the figure. The wired connecting PQ with the battery are loose and exert no force on PQ. A current of \(2.0\ A\) is established when the switch S is closed. Find the tension in the threads now.
Physics|Class 12

Load More

More Solution Recommended For You
NCERT Maths for Class 6
NCERT Physics for Class 6
NCERT Chemistry for Class 6
NCERT Biology for Class 6
NCERT Maths for Class 7
NCERT Physics for Class 7
NCERT Chemistry for Class 7
NCERT Biology for Class 7
NCERT Maths for Class 8
NCERT Physics for Class 8
NCERT Chemistry for Class 8
NCERT Biology for Class 8
Previous
Next