If we reverse the direction of electric current, then the direction of the magnetic field will be...? Mcqs

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If we reverse the direction of electric current, then the direction of the magnetic field will be...?

(A) Reversed
(B) Remain same

(C) Become tangent
(D) Become normal

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When parallel rays of light fall onto rough surface they are reflected in different directions and are scattered is called _____...?

(A) Regular Reflection
(B) Specular Reflection

(C) Diffused Reflection
(D) None

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The type of coordination exhibited by Plants _____...?

(A) Nervous coordination
(B) Chemical coordination

(C) Mechanical coordination
(D) Both a & b

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Water waves pass from deep into the shallow region and are then refracted. The characteristics of waves which will remain constant is _____...?

(A) Direction
(B) Frequency

(C) Speed
(D) Wavelength

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By which process copper is refined ____________...?

(A) Roasting
(B) Oxidation

(C) Zone Refining
(D) Electrolysis

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Which of the following terms is used for species evolving from the same ancestor to different ecological niches...?

(A) Convergent evolution
(B) Divergent evolution

(C) Adaptive radiation
(D) Coevolution

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A slow-running pendulum clock can be speeded up by_______________...?

(A) Increasing the length of the rod
(B) Increasing the weight of the bob

(C) Reducing the length of the rod
(D) Reducing the weight of the bob

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Which cells are responsible for vision in bright light and coloured vision...?

(A) Rod Cells
(B) Cone Cells

(C) Bipolar Cells
(D) Ganglion Cells

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Which one of the following animal is a decomposer...?

(A) Mould
(B) Wolf

(C) Bird
(D) Cat

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Tetanus is caused by____________...?

(A) Clostridium
(B) Virus

(C) Bacteriophage
(D) Salmonella

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