Electromagnetic Waves
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PHXI15:WAVES

358916 Assertion :
In Hertz experiment, the electric vector of radiation produced by the source gap is parallel to the gap.
Reason :
Production of sparks between the detector gap is maximum when it is placed perpendicular to the source gap.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358917 Given the wave function (in SI units) for a wave to be \(\psi_{(x, t)}=10^{3} \sin \pi\left(3 \times 10^{6} x-9 \times 10^{14} t\right)\). The speed of wave is

1 \(3 \times {10^7}\;m{s^{ - 1}}\)
2 \(3 \times {10^8}\;m{s^{ - 1}}\)
3 \(9 \times {10^4}\;m{s^{ - 1}}\)
4 \(3 \times {10^6}\;m{s^{ - 1}}\)
PHXI15:WAVES

358918 A beam of light travelling along \(x\)-axis is described by magnetic field
\(B_{z}=5 \times 10^{-9} T \sin \omega(t-Y / C) .\)
What is the maximum electric and magnetic forces on a charge \(i.e\)., \(\alpha\)-particle moving along \(y\)-axis with a speed of \(3 \times {10^8}\;m{\rm{/}}s\). (charge on electron \( = 1.6 \times {10^{ - 19}}C\)).

1 \(4.80 \times {10^{ - 17}}\;N,4.80 \times {10^{ - 17}}\;N\)
2 \(4.85 \times {10^{ - 16}}\;N,5.6 \times {10^{ - 17}}\;N\)
3 \(9.2 \times {10^6}\;N,9.2 \times {10^3}\;N\)
4 \(4.8 \times {10^{ - 19}}\;N,4.8 \times {10^{ - 19}}\;N\)
PHXI15:WAVES

358919 Assertion :
Static crashes are heard on radio, when a lightning flash occurs.
Reason :
Light and radio waves travel with different speeds.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358920 Electromagnetic wave consists of periodically oscillating electric and magnetic vectors

1 In mutually perpendicular planes but vibrating with a phase difference of \(\pi\).
2 In mutually perpendicular planes but vibrating with a phase difference of \(\dfrac{\pi}{2}\)
3 In randomly oriented planes but vibrating in phase
4 In mutually perpendicular planes but vibrating in phase.
KCET - 2010
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PHXI15:WAVES

358916 Assertion :
In Hertz experiment, the electric vector of radiation produced by the source gap is parallel to the gap.
Reason :
Production of sparks between the detector gap is maximum when it is placed perpendicular to the source gap.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358917 Given the wave function (in SI units) for a wave to be \(\psi_{(x, t)}=10^{3} \sin \pi\left(3 \times 10^{6} x-9 \times 10^{14} t\right)\). The speed of wave is

1 \(3 \times {10^7}\;m{s^{ - 1}}\)
2 \(3 \times {10^8}\;m{s^{ - 1}}\)
3 \(9 \times {10^4}\;m{s^{ - 1}}\)
4 \(3 \times {10^6}\;m{s^{ - 1}}\)
PHXI15:WAVES

358918 A beam of light travelling along \(x\)-axis is described by magnetic field
\(B_{z}=5 \times 10^{-9} T \sin \omega(t-Y / C) .\)
What is the maximum electric and magnetic forces on a charge \(i.e\)., \(\alpha\)-particle moving along \(y\)-axis with a speed of \(3 \times {10^8}\;m{\rm{/}}s\). (charge on electron \( = 1.6 \times {10^{ - 19}}C\)).

1 \(4.80 \times {10^{ - 17}}\;N,4.80 \times {10^{ - 17}}\;N\)
2 \(4.85 \times {10^{ - 16}}\;N,5.6 \times {10^{ - 17}}\;N\)
3 \(9.2 \times {10^6}\;N,9.2 \times {10^3}\;N\)
4 \(4.8 \times {10^{ - 19}}\;N,4.8 \times {10^{ - 19}}\;N\)
PHXI15:WAVES

358919 Assertion :
Static crashes are heard on radio, when a lightning flash occurs.
Reason :
Light and radio waves travel with different speeds.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358920 Electromagnetic wave consists of periodically oscillating electric and magnetic vectors

1 In mutually perpendicular planes but vibrating with a phase difference of \(\pi\).
2 In mutually perpendicular planes but vibrating with a phase difference of \(\dfrac{\pi}{2}\)
3 In randomly oriented planes but vibrating in phase
4 In mutually perpendicular planes but vibrating in phase.
KCET - 2010
For More Updates join with Us
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PHXI15:WAVES

358916 Assertion :
In Hertz experiment, the electric vector of radiation produced by the source gap is parallel to the gap.
Reason :
Production of sparks between the detector gap is maximum when it is placed perpendicular to the source gap.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358917 Given the wave function (in SI units) for a wave to be \(\psi_{(x, t)}=10^{3} \sin \pi\left(3 \times 10^{6} x-9 \times 10^{14} t\right)\). The speed of wave is

1 \(3 \times {10^7}\;m{s^{ - 1}}\)
2 \(3 \times {10^8}\;m{s^{ - 1}}\)
3 \(9 \times {10^4}\;m{s^{ - 1}}\)
4 \(3 \times {10^6}\;m{s^{ - 1}}\)
PHXI15:WAVES

358918 A beam of light travelling along \(x\)-axis is described by magnetic field
\(B_{z}=5 \times 10^{-9} T \sin \omega(t-Y / C) .\)
What is the maximum electric and magnetic forces on a charge \(i.e\)., \(\alpha\)-particle moving along \(y\)-axis with a speed of \(3 \times {10^8}\;m{\rm{/}}s\). (charge on electron \( = 1.6 \times {10^{ - 19}}C\)).

1 \(4.80 \times {10^{ - 17}}\;N,4.80 \times {10^{ - 17}}\;N\)
2 \(4.85 \times {10^{ - 16}}\;N,5.6 \times {10^{ - 17}}\;N\)
3 \(9.2 \times {10^6}\;N,9.2 \times {10^3}\;N\)
4 \(4.8 \times {10^{ - 19}}\;N,4.8 \times {10^{ - 19}}\;N\)
PHXI15:WAVES

358919 Assertion :
Static crashes are heard on radio, when a lightning flash occurs.
Reason :
Light and radio waves travel with different speeds.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358920 Electromagnetic wave consists of periodically oscillating electric and magnetic vectors

1 In mutually perpendicular planes but vibrating with a phase difference of \(\pi\).
2 In mutually perpendicular planes but vibrating with a phase difference of \(\dfrac{\pi}{2}\)
3 In randomly oriented planes but vibrating in phase
4 In mutually perpendicular planes but vibrating in phase.
KCET - 2010
NEET DIGITAL LIBRARY
PHXI15:WAVES

358916 Assertion :
In Hertz experiment, the electric vector of radiation produced by the source gap is parallel to the gap.
Reason :
Production of sparks between the detector gap is maximum when it is placed perpendicular to the source gap.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358917 Given the wave function (in SI units) for a wave to be \(\psi_{(x, t)}=10^{3} \sin \pi\left(3 \times 10^{6} x-9 \times 10^{14} t\right)\). The speed of wave is

1 \(3 \times {10^7}\;m{s^{ - 1}}\)
2 \(3 \times {10^8}\;m{s^{ - 1}}\)
3 \(9 \times {10^4}\;m{s^{ - 1}}\)
4 \(3 \times {10^6}\;m{s^{ - 1}}\)
PHXI15:WAVES

358918 A beam of light travelling along \(x\)-axis is described by magnetic field
\(B_{z}=5 \times 10^{-9} T \sin \omega(t-Y / C) .\)
What is the maximum electric and magnetic forces on a charge \(i.e\)., \(\alpha\)-particle moving along \(y\)-axis with a speed of \(3 \times {10^8}\;m{\rm{/}}s\). (charge on electron \( = 1.6 \times {10^{ - 19}}C\)).

1 \(4.80 \times {10^{ - 17}}\;N,4.80 \times {10^{ - 17}}\;N\)
2 \(4.85 \times {10^{ - 16}}\;N,5.6 \times {10^{ - 17}}\;N\)
3 \(9.2 \times {10^6}\;N,9.2 \times {10^3}\;N\)
4 \(4.8 \times {10^{ - 19}}\;N,4.8 \times {10^{ - 19}}\;N\)
PHXI15:WAVES

358919 Assertion :
Static crashes are heard on radio, when a lightning flash occurs.
Reason :
Light and radio waves travel with different speeds.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358920 Electromagnetic wave consists of periodically oscillating electric and magnetic vectors

1 In mutually perpendicular planes but vibrating with a phase difference of \(\pi\).
2 In mutually perpendicular planes but vibrating with a phase difference of \(\dfrac{\pi}{2}\)
3 In randomly oriented planes but vibrating in phase
4 In mutually perpendicular planes but vibrating in phase.
KCET - 2010
Join With Us for More Updates
PHXI15:WAVES

358916 Assertion :
In Hertz experiment, the electric vector of radiation produced by the source gap is parallel to the gap.
Reason :
Production of sparks between the detector gap is maximum when it is placed perpendicular to the source gap.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358917 Given the wave function (in SI units) for a wave to be \(\psi_{(x, t)}=10^{3} \sin \pi\left(3 \times 10^{6} x-9 \times 10^{14} t\right)\). The speed of wave is

1 \(3 \times {10^7}\;m{s^{ - 1}}\)
2 \(3 \times {10^8}\;m{s^{ - 1}}\)
3 \(9 \times {10^4}\;m{s^{ - 1}}\)
4 \(3 \times {10^6}\;m{s^{ - 1}}\)
PHXI15:WAVES

358918 A beam of light travelling along \(x\)-axis is described by magnetic field
\(B_{z}=5 \times 10^{-9} T \sin \omega(t-Y / C) .\)
What is the maximum electric and magnetic forces on a charge \(i.e\)., \(\alpha\)-particle moving along \(y\)-axis with a speed of \(3 \times {10^8}\;m{\rm{/}}s\). (charge on electron \( = 1.6 \times {10^{ - 19}}C\)).

1 \(4.80 \times {10^{ - 17}}\;N,4.80 \times {10^{ - 17}}\;N\)
2 \(4.85 \times {10^{ - 16}}\;N,5.6 \times {10^{ - 17}}\;N\)
3 \(9.2 \times {10^6}\;N,9.2 \times {10^3}\;N\)
4 \(4.8 \times {10^{ - 19}}\;N,4.8 \times {10^{ - 19}}\;N\)
PHXI15:WAVES

358919 Assertion :
Static crashes are heard on radio, when a lightning flash occurs.
Reason :
Light and radio waves travel with different speeds.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI15:WAVES

358920 Electromagnetic wave consists of periodically oscillating electric and magnetic vectors

1 In mutually perpendicular planes but vibrating with a phase difference of \(\pi\).
2 In mutually perpendicular planes but vibrating with a phase difference of \(\dfrac{\pi}{2}\)
3 In randomly oriented planes but vibrating in phase
4 In mutually perpendicular planes but vibrating in phase.
KCET - 2010