4321: Which one of the following is used for dating archaeological specimens in wood, bones and shells?
(a) Uranium-238
(b) Argon isotope
(c) Carbon-14
(d) Strontium-90
4322: 'Water flows through a pipeline at a steady rate. At a point on the pipeline, water is withdrawn continuously through a branch line'.
Consider the following statements in this regard.
1. Pipe line beyond the branch line will not be full.
2. Flow velocity in the main line will be less after the branch line than before it.
3. Flow velocity in the main line beyond the branch line will become unsteady.
Of these statements
(a) 1 is true
(b) 2 is true
(c) 3 is true
(d) None is true
4323: In Jainism "perfect knowledge" is referred to as
(a) Jina
(b) ratna
(c) kaivalya
(d) nirvana
4324: The Brahmo Samaj is based on the principles of:
(a) Monotheism
(b) Polytheism
(c) Atheism
(d) Monism
4325: Which organ is associated with the production of insulin in the human body ?
(a) Pancreas
(b) Liver
(c) Kidney
(d) Heart