Download App

Ray Optics and Optical Instruments — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsRay Optics and Optical Instruments1 Mark
MCQ

When the reflecting or refracting rays do not actually intersect but appear to intersect when produced backwards, 

  • A
    A real image is formed.
  • B
    A virtual image is formed.
  • C
    Either a real or a virtual image is formed.
  • D
    Neither a real nor a virtual image is formed.
✓

Answer

  1. A virtual image is formed.

Explanation:

A virtual image is formed when the refracting or reflecting rays do not actually intersect but appear to intersect when they are produced backwards.

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 Ray Optics and Optical Instruments→Ray Optics and Optical Instruments — all question types→Physics STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Assertion  : The electrical conductivity of earth's atmosphere decreases with altitude. 

Reason      :  The high energy particles (i.e. 𝛾-rays and cosmic rays) coming from outer space and entering our earth's atmosphere cause ionisation of the atoms of the gases present there and the pressure of gases decreases with increase in altitude.

(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 assertion is false but reason is true.
→

With a potentiometer null point were obtained at 140 cm and 180 cm with cells of emf 1.1 V and one unknown X volts. Unknown emf is

(a) 1.1 V

(b) 1.8 V

(c) 2.4 V  

(d) 1.41 V
→
The materials having high resistance to the passage of electricity are called as:
→

Which of the following pairs is an isobar

(a)  and  

(b)  and  

(c)  and  

(d)  and  
→
The wavelength of a photon needed to remove a proton from a nucleus which is bound to the nucleus with 1MeV energy is nearly:
→

The distance between a proton and electron both having a charge 1.6  of a hydrogen atom is . The value of intensity of electric field produced on electron due to proton will be

(a) 2.304  

(b) 14.4 V/m

(c) 16 V/m

(d) 1.44 
→
The current in a coil of 0.4mH coil increases by 250mA in 0.1 seconds. The induced emf will be:-
→

Assertion  :   A charged capacitor is disconnected from a battery. Now if its plate are separated farther, the potential energy will fall.

Reason     : Energy stored in a capacitor is equal to the work done in charging it.

(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 assertion is false but reason is true.
→

What is the stopping potential when the metal with work function 0.6 eV is illuminated with the light of 2 eV

(a) 2.6 V

(b) 3.6 V

(c) 0.8 V  

(d) 1.4 V
→

 and  are the electrical conductivities of Ge and Na respectively. If these substances are heated, then

(a) Both    and  increase

(b)   increases and   decreases

(c)   decreases and  increases

(d) Both   and  decrease
→