A) \[A=\sqrt{2}\,cm,n=\frac{500}{\pi }Hz\] done clear
B) \[A=\sqrt{2}cm,n=\frac{1000}{\pi }Hz\] done clear
C) \[A=\frac{1}{\sqrt{2}}cm,n=\frac{500}{\pi }Hz\] done clear
D) \[A=\frac{1}{\sqrt{2}}cm,n=\frac{1000}{\pi }Hz\] done clear
View Answer play_arrowquestion_answer2) In the circuit shown, current through 25 V cell is
A) 7.2 A done clear
B) 10 A done clear
C) 12 A done clear
D) None of these done clear
View Answer play_arrowA) \[\frac{3}{2}g\] done clear
B) \[\frac{4}{3}g\] done clear
C) g done clear
D) \[\frac{3}{4}g\] done clear
View Answer play_arrowA) \[\frac{4}{3}\] done clear
B) \[\frac{16}{9}\] done clear
C) \[\frac{15}{12}\] done clear
D) \[\frac{32}{27}\] done clear
View Answer play_arrowA) \[g\] done clear
B) \[\frac{g}{2}\] done clear
C) \[2g\] done clear
D) Zero done clear
View Answer play_arrowA) \[H=\frac{2}{\alpha }\] done clear
B) Work done by \[\overrightarrow{F}\]during motion up to \[\frac{H}{2}\]is \[\frac{3mg}{2\alpha }\] done clear
C) Velocity of particle at \[\frac{H}{2}\]is\[\sqrt{\frac{g}{\alpha }}\] done clear
D) All of these done clear
View Answer play_arrowA) \[\frac{(absin\theta )}{\left( {{a}^{2}}+{{b}^{2}}{{\cos }^{2}}\theta \right)}\] done clear
B) \[\frac{(2absin\theta )}{\left( {{a}^{2}}-{{b}^{2}}{{\cos }^{2}}\theta \right)}\] done clear
C) \[\frac{({{a}^{2}}si{{n}^{2}}\theta )}{({{a}^{2}}+{{b}^{2}}{{\cos }^{2}}\theta )}\] done clear
D) \[\frac{({{b}^{2}}si{{n}^{2}}\theta )}{({{a}^{2}}-{{b}^{2}}{{\cos }^{2}}\theta )}\] done clear
View Answer play_arrowA) \[0.84s\] done clear
B) \[0.94s\] done clear
C) \[1.26s\] done clear
D) \[1.42s\] done clear
View Answer play_arrowA) \[\frac{2}{3}{{\left( gR \right)}^{1/2}}\] done clear
B) \[{{\left( gR \right)}^{1/2}}\] done clear
C) \[{{\left( 2gR \right)}^{1/2}}\] done clear
D) \[2{{\left( \frac{gR}{3} \right)}^{1/2}}\] done clear
View Answer play_arrowA) \[1200\text{ }Hz\] done clear
B) \[1000\text{ }Hz\] done clear
C) \[1090\text{ }Hz\] done clear
D) 1100 Hz done clear
View Answer play_arrowA) \[{{\tan }^{-1}}\left( 0.75 \right)\] done clear
B) \[{{\cot }^{-1}}\left( 0.75 \right)\] done clear
C) \[{{\sin }^{-1}}\left( 0.75 \right)\] done clear
D) \[{{\cos }^{-1}}\left( 0.75 \right)\] done clear
View Answer play_arrowStatement-1: A sphere is performing pure rolling on a rough horizontal surface with constant angular velocity, frictional force acting on the sphere is zero. |
Statement-2: Velocity of contact point is zero. |
A) Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. done clear
B) Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. done clear
C) Statement 1 is true but statement 2 is false. done clear
D) Statement 1 is false but statement 2 is true. done clear
View Answer play_arrowStatement-1: A common model of a solid assumes the atoms to be points executing SHM about mean lattice positions. This model cannot explain thermal expansion of solids. |
Statement-2: The average distance over a time period of oscillation between the particles remains constant. |
A) Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. done clear
B) Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. done clear
C) Statement 1 is true but statement 2 is false. done clear
D) Statement 1 is false but statement 2 is true. done clear
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