Download App

Dual Nature of Radiation and Matter — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsDual Nature of Radiation and Matter1 Mark
MCQ
Because we cannot ever know the initial conditions of groups of objects with perfect precision, the later behaviour of complex systems of objects may be almost completely unpredictable, even the wonderfully successful equations derived from Newtonian mechanics.
The previous statement describes the essence of which theory?
  • A
    Newton's law of universal gravitation
  • B
    Chaos theory
  • C
    Relativity
  • D
    Quantum Theory
✓

Answer

  1. Quantum Theory

Explanation:

The statement has the essence of quantum theory which postulates that both the position and momentum cannot be precisely measured at the same instant. This is called Uncertainty Principle. An associated error always exists in either or both. Hence behavior of complex systems becomes much more difficult to analyse and impossible to predict.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q [1M]" from Dual Nature of Radiation and Matter→Dual Nature of Radiation and Matter — all question types→Physics STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

To convert mechanical energy into electrical energy, one can use:
→

The V-i graphs A and B drawn for two voltameters. Identify each graph

(a) A for water voltameter and B for Cu  voltameter

(b) A for Cu  voltameter and B for water voltameter

(c) Both A and B represents Cu  voltameter

(d) None of these
→

In the circuit shown below,  The reading of the voltmeter V is

(a) 12 V   

(b) 8 V

(c) 20 V

(d) 16 V
→

There is a uniform electric field of strength   along y-axis. A body of mass 1g and charge is projected into the field from origin along the positive x-axis with a velocity 10m/s. Its speed in m/s after 10s is (Neglect gravitation)

(a) 10

(b) 5 

(c) 10 

(d) 20
→

When 2 amperes current is passed through a tangent galvanometer, it gives a deflection of 30o. For 60o deflection, the current must be

(a) 1 amp

(b) 2 

(c) 4 amp 

(d) 6 amp
→

A lens (focal length 50 cm) forms the image of a distant object which subtends an angle of 1 milliradian at the lens. What is the size of the image

(a) 5 mm

(b) 1 mm

(c) 0.5 mm

(d) 0.1 mm
→

The two waves represented by y1 = a sin(wt) and   have a phase difference of

(a) 0

(b)  

(c)  

(d)

→

Assertion  :  Zener diode works on a principle of breakdown voltage.

Reason      : Current increases suddenly after breakdown voltage.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If the assertion and reason both are false.
→
An atom of nuclean change q is placed on a line. There particles A(mass = m, change = q), B(mass = 2, change =q) and C(mass = 3m, change = 3q) are shot towards the atom, a distance r away from the line and parallel to it. The particle that would be deflected the most would be?
→

Which of the following electromagnetic waves have minimum frequency

(a) Microwaves

(b) Audible waves

(c) Ultrasonic waves

(d) Radiowaves
→