Question # 1

Which particle has larger range in air.

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Alpha rays

Gama rays

Beta rays

Neutron

The energy of the photon of wavelength 500 nm is.

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3.10 eV

2.49 eV

1.77 eV

1.52 eV

Electromagnetic induction obeys law of conservation

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Charge

Energy

Momentum

Mass

Coulomb /volt is called.

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Farad

Ampere

Joule

Henry

The value of Rydberg constant is:

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1.0749x10⁷m^-1

1.0974 x 10⁷ m^-1

1.974 x10⁶m^-1

1.0974 x 10^-7 m^-1

When a conductor moves across a magnetic field an emf is set up this emf is called.

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Variable emf

Constant emf

Back emf

Induced emf

Phase difference between V and I of an A.C through resistor is.

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Zero Degree

90 ^o

80^o

120^o

In an nihilation emitted photons moves in opposite directions to conserve.

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Mass

Charge

Energy

Momentum

Yield stress is another name of

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Plasticity

Proportional limit

Elastic limit

Both (b) and (c)

A particles equal or greater in mass than of protons are called.

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Baryons

Leptons

Mesons

Quarks

A soft iron cylinder is placed inside coil galvanometer to:

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Make field circular and strong

Make field radial and weak

Make field radial and strong

All of above

The longest wavelength of Paschen series is.

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656 nm

1094 nm

1875 nm

2000 nm

The total charge of any nucleus is:

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Ze

Z

Both a and b

None of above

The wave form of alternating voltage is a

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Cotangent curve

Cosine curve

Sine curve

Tangent curve

The circuit which compares the two voltages is.

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LDR

Sensor

Comparator

Logic gate

The slope of q-t curve at any instant of time gives.

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Voltage

Current

Charge

Botha a and b

In an electronic transition atom cannot emit.

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Infrared radiations

Visible radiations

Ultraviolet radiations

Gama radiations

Paschen series lies in the

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Far ultraviolet region

Visible region

Ultraviolet region

Inferred region

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