If the light source in front of an eye becomes bright suddenly,what happens?

  • A
    Focus of lens will change
  • B
    Retinal blood supply will cut
  • C
    Vitreous humour becomes fluid
  • D
    Pupil will contract

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Similar Questions

The watering of the mouth at the sight of delicious food is a result of:

Which of the following is an example of a reflex action that occurs without our conscious awareness?

The reflex pathway comprises of . . . . . . neurons.

The phenomenon where the mouth becomes watery upon looking at delicious food is due to:

Given below are different components of a reflex arc:
$I$. Effector organ
$II$. Interneuron
$III$. Motor neuron
$IV$. Sensory neuron
$V$. Sensory receptor
Arrange these in the correct order of the action potential that follows a sensory receptor stimulation.

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