Question # 1

According to Coulomb's law , what happens to the attraction of two oppositely charged objects as their distance of separation increases?

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Increase

Decreased

remain unchanged

can not be determined

What does the term e-mail stand for:

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Emergency mail

Electronic mail

Extra mail

External mail

The output of a NAND gate is 0 when

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Both of its inputs are 0

Both of its inputs are 1

any of its inputs is 0

any of its inputs is 1

When a ray of light enters from denser medium to rare medium, the angle of incidence for which angle of refraction is 90^o is called:

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angle of incidence

critical angle

angle of refrection

None of these

How many possible solutions are there for a prblem?

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One

Two

Three

Multiple

The oscillations of a system in the presence of _____________ force are called amp oscillations:

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Resistive force

Attractive force

Both of these

None of these

The distance of the object from the mirror is represented by :

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q

p

m

F

Snell' law is:

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n = sin<x/sin <r

n=sin <i/sin<r

n = sin <r/sin<i

<i/<r

Which animal have ability to move his eye lens:

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Snake

Fish

Ant

Tiger

Two uncharged objects a and b are rubbed against each other. When object b is placed near a negatively charged object c, the two objects repel each other. Which of these statements is true about object a:

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Remains uncharged

Becomes positively charged

Becomes negatively charged

Unpredictable

Capacitors that are used in resonant circuits that tune radios to particular frequencies, such circuits are called:

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Series circuits

Filter circuits

Parallel circuits

AC circuits

The half -life of carbon is

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5730 years

5700 years

5720 years

572 years

Capacitors are mainly used for radio frequency tuning:

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Paper capacitor

Air capacitor

Mica capacitor

Electrolytic capacitor

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