EASY
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IMPORTANT
Earn 100

Which of the following statement is incorrect?
(a)
Conservation laws have deep connection with symmetries of nature
(b)Weak nuclear force is weakest among all fundamental forces of nature
(c)A conservation law is a hypothesis based on observations and experiments
(d)In a nuclear process mass gets converted to energy or vice versa

42.86% studentsanswered this correctly

Important Questions on Physical World and Measurement
EASY
TS EAMCET
IMPORTANT
The ratio of relative strength of electromagnetic force to weak nuclear force is,

MEDIUM
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IMPORTANT
The physics behind fusion test reactor is:

EASY
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IMPORTANT
Match the columns I and II
Column I | Column II | ||
A | Stoke's law | I | Pressure and energy |
B | Turbulence | II | Hydraulic lift |
C | Bernoulli's Principle | III | Viscous drag |
D | Pascal's law | IV | Reynold's number |
The correct match is

MEDIUM
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IMPORTANT
Consider a particle moving along the positive direction of -axis. The velocity of the particle is given by ( is a positive constant). At time , if the particle is located at , the time dependence of the velocity and the acceleration of the particle are respectively.

EASY
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IMPORTANT
If and represent the energies, and represent the times, in which of the following is dimensionally correct relation?

EASY
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IMPORTANT
A gas satisfies the relation where is pressure, is volume and is constant. The dimensions of constant are

MEDIUM
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IMPORTANT
Match the physical quantities given in List - I with dimensions in List - II.
List - I | List - II | ||
A | Gravitational potential | I | |
B | Stefan's constant | II | |
C | Permittivity | III | |
D | Specific heat capacity | IV |
(The dimensions of mass, length, time, temperature and current are and respectively)

HARD
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IMPORTANT
The dimensions of where is Stefan's constant and is Wien's constant are
