Related Questions

30 m উচ্চতা থেকে একটি বস্তুকে বিনা বাধায় পড়তে দিলে কোথায় উহার গতিশক্তি বিভব শক্তির দ্বিগুন হবে?(A body is allowed to fall freely from a height of 30 m. Where will its kinetic energy be twice the potential energy?)
A 9.5 m
B 10.5 m
C 10 m
D 12 m
E 15 m
If the kinetic energy and potential energy of a simple harmonic oscillator of amplitude A are both equal to half the total energy, then the displacement is equal to
A $${\text{A}}$$
B $$\frac{{\text{A}}}{2}$$
C $$\frac{{\text{A}}}{{\sqrt 2 }}$$
D $${\text{A}}\sqrt 2 $$
Go and catch the falling star. Here the ‘‘falling’’ is
A an adverb
B a preposition
C an adjective
D a verb
সরল দোল গতিসম্পন্ন একটি বস্তু যখন তার সাম্যাবস্থান থেকে 2 cm দূরে, তখন তার গতিশক্তি স্থিতিশক্তির ও গুণ। বস্তুটির দোলনের বিস্তার কত হবে? (An object oscillating in simple harmonic motion has its kinetic energy 3 times the potential energy when the object is 2 cm away from its equilibrium position. What is the amplitude of the oscillation for the object?)
A 3 cm
B 1 cm
C 2 cm
D 4 cm
The ratio of kinetic energy and potential energy of a simple harmonic oscillator, at a displacement equal to half its amplitude is given by
A 1 : 2
B 1 : 1
C 2 : 1
D 3 : 1
The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to (where r is the distance of’the particle from centre of the earth)
A log r
B r
C r2
D $$\frac{1}{{\text{r}}}$$
He raised his hand . Here 'raised' is a _____ verb .
A copulative
B transitive
C factitive
D causative
The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as
A Feed pump
B Injector
C Feed check valve
D Pressure gauge
The ratio of the energy absorbed by the body to total energy falling on it is called
A Absorptive power
B Emissive power
C Absorptivity
D Emissivity
What happens to the Potential and Kinetic energies of a body as it falls down from a height?
A Its Potential energy decreases while its Kinetic energy increases
B There is no change in its Potential or Kinetic energy
C Its Potential and Kinetic energies decrease
D Its Potential energy increases while its Kinetic energy decreases

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