500 General Science For Assam Agriculture, PNRD, Assam Police, Assam TET, SSC & Railway Exam (Part-12)

General Science

For Assam Agriculture, PNRD, Assam Police, Assam TET, Forest, DECT, APSC, Railway & SSC Exam (Part-12)

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500 General Science (Part-12)

1➤ (Q) How is image formed on the retina of a human eye?

Ans:- Real and inverted

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2➤ (Q) The resistance of material increases with temperature. What is this?

Ans:- Metal

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3➤ (Q) When do all the magnetic materials lose their magnetic properties?

Ans:- Strongly heated

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4➤ (Q) What is the relative permeability of a paramagnetic material?

Ans:- Greater than unity

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5➤ (Q) A soap bubble is given negative charge then what happen in its radius?

Ans:- Increases

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6➤ (Q) How is the relative permeability of a diamagnetic material?

Ans:- Less than unity

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7➤ (Q) How are the magnetic field lines in the middle of a solenoid?

Ans:- Parallel to the axis

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8➤ (Q) Why do Electricians use rubber gloves while working?

Ans:- Rubber is an insulator

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9➤ (Q) What work is work done in moving a positive charge on an equipotential surface?

Ans:- Zero

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10➤ (Q) Kirchhoff’s voltage law is based on the law of conservation of which thing?

Ans:- Energy

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11➤ (Q) Why is In a hydel station the motion produced in turbines?

Ans:- Due to the flow of water

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12➤ (Q) What is most suitable for the core of an electromagnet?

Ans:- Soft iron

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13➤ (Q) At a grid sub stations the voltage is stepped up to reduce loss of which thing?

Ans:- Power

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14➤ (Q) Equal charges are given to two spheres of different radii. What will the potential be?

Ans:- More on smaller sphere

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15➤ (Q) Two electron beams are travelling parallel to each other. What will be their reactions?

Ans:- Repel each other

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16➤ (Q) Instrument used to store the electric charge is known by which name?

Ans:- Capacitor

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17➤ (Q) When an ebonite rod is rubbed with fur, which charge acquired by the fur?

Ans:- Positive

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18➤ (Q) Conversion of chemical energy into electrical energy occurs in which thing?

Ans:- Battery

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19➤ (Q) What is the temperature at which a ferromagnetic material becomes paramagnetic?

Ans:- Curie temperature

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20➤ (Q) A magnetic needle is kept in non uniform magnetic field. What does it experiences?

Ans:- A force and a torque

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All 500 General Science PDF

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