False sense of perception without any external object or stimulus is known as:

Ans. is 'c' i.e. Hallucination Hallucination - A perception that occurs in the absence of a stimulusIllusions - A misinterpretation of stimuli arising from external objects.Phobia - An irrational fear of an object, situation or activityImpulse - A sudden often unreasoning determination to perform some act.