354799
Assertion : Longitudinal waves cannot be polarised. Reason : Electromagnetic waves can be polarised.
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.
Explanation:
Longitudinal waves, (such as sound waves,) and cannot be polarized. The ability of electromagnetic waves to be polarized is due to vibrations of \(\vec{E}, \vec{B}\) field which can be without medium also. So correct option is (2).
PHXI15:WAVES
354800
Waves produced in the prongs and the stem of a vibrating tuning fork are
1 transverse in both prongs and stem
2 longitudinal in both prongs and stem
3 transverse in prongs, longitudinal in stem
4 longitudinal in prongs, transverse in stem.
Explanation:
Longitudinal waves are produced in the stems and transverse waves are produced in the prong of a vibrating tuning fork. So correct option is (3)
PHXI15:WAVES
354801
Assertion : A vibrating tuning fork sounds louder when its stem is pressed against a desk top. Reason : When a wave reaches another denser medium, part of the wave is reflected.
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.
Explanation:
A tuning fork, when struck, produces a pure tone by setting air particles into vibrational motion. If tuning fork is vibrated on a desktop makes the desktop vibrate at the same frequency. This forced vibration amplifies the sound as the larger desktop surface area affects more air particles, increasing amplitude and loudness. So correct option is (3).
PHXI15:WAVES
354802
Statement A : Explosions on other planets are not heard on Earth. Statement B : Sound waves cannot travel to a far off distance
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
There is no material medium over a long distance between earth and other planets. So explosions on other planets are not heard on earth.
354799
Assertion : Longitudinal waves cannot be polarised. Reason : Electromagnetic waves can be polarised.
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.
Explanation:
Longitudinal waves, (such as sound waves,) and cannot be polarized. The ability of electromagnetic waves to be polarized is due to vibrations of \(\vec{E}, \vec{B}\) field which can be without medium also. So correct option is (2).
PHXI15:WAVES
354800
Waves produced in the prongs and the stem of a vibrating tuning fork are
1 transverse in both prongs and stem
2 longitudinal in both prongs and stem
3 transverse in prongs, longitudinal in stem
4 longitudinal in prongs, transverse in stem.
Explanation:
Longitudinal waves are produced in the stems and transverse waves are produced in the prong of a vibrating tuning fork. So correct option is (3)
PHXI15:WAVES
354801
Assertion : A vibrating tuning fork sounds louder when its stem is pressed against a desk top. Reason : When a wave reaches another denser medium, part of the wave is reflected.
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.
Explanation:
A tuning fork, when struck, produces a pure tone by setting air particles into vibrational motion. If tuning fork is vibrated on a desktop makes the desktop vibrate at the same frequency. This forced vibration amplifies the sound as the larger desktop surface area affects more air particles, increasing amplitude and loudness. So correct option is (3).
PHXI15:WAVES
354802
Statement A : Explosions on other planets are not heard on Earth. Statement B : Sound waves cannot travel to a far off distance
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
There is no material medium over a long distance between earth and other planets. So explosions on other planets are not heard on earth.
354799
Assertion : Longitudinal waves cannot be polarised. Reason : Electromagnetic waves can be polarised.
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.
Explanation:
Longitudinal waves, (such as sound waves,) and cannot be polarized. The ability of electromagnetic waves to be polarized is due to vibrations of \(\vec{E}, \vec{B}\) field which can be without medium also. So correct option is (2).
PHXI15:WAVES
354800
Waves produced in the prongs and the stem of a vibrating tuning fork are
1 transverse in both prongs and stem
2 longitudinal in both prongs and stem
3 transverse in prongs, longitudinal in stem
4 longitudinal in prongs, transverse in stem.
Explanation:
Longitudinal waves are produced in the stems and transverse waves are produced in the prong of a vibrating tuning fork. So correct option is (3)
PHXI15:WAVES
354801
Assertion : A vibrating tuning fork sounds louder when its stem is pressed against a desk top. Reason : When a wave reaches another denser medium, part of the wave is reflected.
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.
Explanation:
A tuning fork, when struck, produces a pure tone by setting air particles into vibrational motion. If tuning fork is vibrated on a desktop makes the desktop vibrate at the same frequency. This forced vibration amplifies the sound as the larger desktop surface area affects more air particles, increasing amplitude and loudness. So correct option is (3).
PHXI15:WAVES
354802
Statement A : Explosions on other planets are not heard on Earth. Statement B : Sound waves cannot travel to a far off distance
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
There is no material medium over a long distance between earth and other planets. So explosions on other planets are not heard on earth.
354799
Assertion : Longitudinal waves cannot be polarised. Reason : Electromagnetic waves can be polarised.
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.
Explanation:
Longitudinal waves, (such as sound waves,) and cannot be polarized. The ability of electromagnetic waves to be polarized is due to vibrations of \(\vec{E}, \vec{B}\) field which can be without medium also. So correct option is (2).
PHXI15:WAVES
354800
Waves produced in the prongs and the stem of a vibrating tuning fork are
1 transverse in both prongs and stem
2 longitudinal in both prongs and stem
3 transverse in prongs, longitudinal in stem
4 longitudinal in prongs, transverse in stem.
Explanation:
Longitudinal waves are produced in the stems and transverse waves are produced in the prong of a vibrating tuning fork. So correct option is (3)
PHXI15:WAVES
354801
Assertion : A vibrating tuning fork sounds louder when its stem is pressed against a desk top. Reason : When a wave reaches another denser medium, part of the wave is reflected.
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.
Explanation:
A tuning fork, when struck, produces a pure tone by setting air particles into vibrational motion. If tuning fork is vibrated on a desktop makes the desktop vibrate at the same frequency. This forced vibration amplifies the sound as the larger desktop surface area affects more air particles, increasing amplitude and loudness. So correct option is (3).
PHXI15:WAVES
354802
Statement A : Explosions on other planets are not heard on Earth. Statement B : Sound waves cannot travel to a far off distance
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
There is no material medium over a long distance between earth and other planets. So explosions on other planets are not heard on earth.
