358783
Assertion : \(\gamma\) - rays are more energetic than \(X\)-rays. Reason : \(\gamma\) - rays are of nuclear origin but \(X\) rays are produced due to sudden deceleration of high energy electron while falling on a metal of high atomic number.
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:
Both \(A\) and \(R\) are true, but \(R\) is not correct explanation of A. In fact, the energy of \(\gamma\) - rays is more than \(X\)-rays because the frequency of \(\gamma\) - rays is higher than that of \(X\)-rays and \(E=\) \(h v\). So option (2) is correct.
PHXI15:WAVES
358784
Select wrong statement from the followingElectromagnetic waves
1 Are transverse
2 Travel with same speed in all media
3 Travel with the speed of light
4 Are produced by accelerating charge
Explanation:
Conceptual Question
PHXI15:WAVES
358785
Red light differes from blue light in its-
1 Speed
2 Frequency
3 Intensity
4 Amplitude
Explanation:
Red and blue lights differ in their frequency and wavelength.
PHXI15:WAVES
358786
Assertion : Infrared waves are sometimes referred as heat waves. Reason : Infrared rays have wavelengths less than \(10\;nm\)
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:
Infrared waves, known as heat waves, are absorbed by materials with water molecules, elevating the thermal motion of the molecules and causing heating. Wavelength of infrared waves lies between \(700\;nm\) to \(1\;nm\).So correct option is (3).
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PHXI15:WAVES
358783
Assertion : \(\gamma\) - rays are more energetic than \(X\)-rays. Reason : \(\gamma\) - rays are of nuclear origin but \(X\) rays are produced due to sudden deceleration of high energy electron while falling on a metal of high atomic number.
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:
Both \(A\) and \(R\) are true, but \(R\) is not correct explanation of A. In fact, the energy of \(\gamma\) - rays is more than \(X\)-rays because the frequency of \(\gamma\) - rays is higher than that of \(X\)-rays and \(E=\) \(h v\). So option (2) is correct.
PHXI15:WAVES
358784
Select wrong statement from the followingElectromagnetic waves
1 Are transverse
2 Travel with same speed in all media
3 Travel with the speed of light
4 Are produced by accelerating charge
Explanation:
Conceptual Question
PHXI15:WAVES
358785
Red light differes from blue light in its-
1 Speed
2 Frequency
3 Intensity
4 Amplitude
Explanation:
Red and blue lights differ in their frequency and wavelength.
PHXI15:WAVES
358786
Assertion : Infrared waves are sometimes referred as heat waves. Reason : Infrared rays have wavelengths less than \(10\;nm\)
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:
Infrared waves, known as heat waves, are absorbed by materials with water molecules, elevating the thermal motion of the molecules and causing heating. Wavelength of infrared waves lies between \(700\;nm\) to \(1\;nm\).So correct option is (3).
358783
Assertion : \(\gamma\) - rays are more energetic than \(X\)-rays. Reason : \(\gamma\) - rays are of nuclear origin but \(X\) rays are produced due to sudden deceleration of high energy electron while falling on a metal of high atomic number.
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:
Both \(A\) and \(R\) are true, but \(R\) is not correct explanation of A. In fact, the energy of \(\gamma\) - rays is more than \(X\)-rays because the frequency of \(\gamma\) - rays is higher than that of \(X\)-rays and \(E=\) \(h v\). So option (2) is correct.
PHXI15:WAVES
358784
Select wrong statement from the followingElectromagnetic waves
1 Are transverse
2 Travel with same speed in all media
3 Travel with the speed of light
4 Are produced by accelerating charge
Explanation:
Conceptual Question
PHXI15:WAVES
358785
Red light differes from blue light in its-
1 Speed
2 Frequency
3 Intensity
4 Amplitude
Explanation:
Red and blue lights differ in their frequency and wavelength.
PHXI15:WAVES
358786
Assertion : Infrared waves are sometimes referred as heat waves. Reason : Infrared rays have wavelengths less than \(10\;nm\)
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:
Infrared waves, known as heat waves, are absorbed by materials with water molecules, elevating the thermal motion of the molecules and causing heating. Wavelength of infrared waves lies between \(700\;nm\) to \(1\;nm\).So correct option is (3).
358783
Assertion : \(\gamma\) - rays are more energetic than \(X\)-rays. Reason : \(\gamma\) - rays are of nuclear origin but \(X\) rays are produced due to sudden deceleration of high energy electron while falling on a metal of high atomic number.
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:
Both \(A\) and \(R\) are true, but \(R\) is not correct explanation of A. In fact, the energy of \(\gamma\) - rays is more than \(X\)-rays because the frequency of \(\gamma\) - rays is higher than that of \(X\)-rays and \(E=\) \(h v\). So option (2) is correct.
PHXI15:WAVES
358784
Select wrong statement from the followingElectromagnetic waves
1 Are transverse
2 Travel with same speed in all media
3 Travel with the speed of light
4 Are produced by accelerating charge
Explanation:
Conceptual Question
PHXI15:WAVES
358785
Red light differes from blue light in its-
1 Speed
2 Frequency
3 Intensity
4 Amplitude
Explanation:
Red and blue lights differ in their frequency and wavelength.
PHXI15:WAVES
358786
Assertion : Infrared waves are sometimes referred as heat waves. Reason : Infrared rays have wavelengths less than \(10\;nm\)
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:
Infrared waves, known as heat waves, are absorbed by materials with water molecules, elevating the thermal motion of the molecules and causing heating. Wavelength of infrared waves lies between \(700\;nm\) to \(1\;nm\).So correct option is (3).