266447
The ratio of de Broglie wavelength of molecules of hydrogen and helium in two gas jars kept separately at temperature of \(27^{\circ}\) and \(127^{\circ}\) respectively is:
266452
Which of the following statements. are correct. (a) Work done by normal reaction is a body placed on a surface is always zero. (b) Friction force is a self adjusting force (c) Upthrust on a body dipped in a liquid is a contact force
1 All a, b, c are true
2 a and b are true
3 band c are true
4 only c is true
Explanation:
d
**NLI Expert**
TEST SERIES (PHYSICS FST)
266453
Two coherent sources produce waves of different intensities which interfere after interference the ratio of the maximum intensity to the minimum intensity is 16. The intensity of the waves are in the ratio:
1 \(4: 1\)
2 \(25: 9\)
3 \(16: 9\)
4 \(5: 3\)
Explanation:
b \[ \begin{aligned} & \frac{I_{\max }}{I_{\min }}=16 \\ & \frac{A_{\max }}{A_{\min }}=4 \\ & \frac{A_1+A_2}{A_1-A_2}=\frac{4}{1} \end{aligned} \] using componendo and divideno \[ \frac{A_1}{A_2}=\frac{5}{3} \Rightarrow \frac{I_1}{I_2}=\left(\frac{5}{3}\right)^2=\frac{25}{9} \]
**NCERT-XII-II-362**
TEST SERIES (PHYSICS FST)
266454
When unpolarised light beam is incident from air into glass ( \(n=1.5\) ) at the polarising angle:
1 Reflected beam is polarised 100 percent
2 Reflected and refracted beams are partially polarised
3 The reason for (a) is that almost all the light is reflected
4 All of the above
Explanation:
a Reflected beam is polarised 100 percent
**NCERT-XII-II-279**
TEST SERIES (PHYSICS FST)
266455
Assertion: The force of repulsion between atomic nucleus and \(\alpha\)-particle varies with distance according to inverse square law. Reason: Electrons were discovered by J.J. Thomson
1 If both assertion and reason are true and the reason is the correct explanation of the assertion
2 If both assertion and reason are true but reason is not the correct explanation of the assertion
266447
The ratio of de Broglie wavelength of molecules of hydrogen and helium in two gas jars kept separately at temperature of \(27^{\circ}\) and \(127^{\circ}\) respectively is:
266452
Which of the following statements. are correct. (a) Work done by normal reaction is a body placed on a surface is always zero. (b) Friction force is a self adjusting force (c) Upthrust on a body dipped in a liquid is a contact force
1 All a, b, c are true
2 a and b are true
3 band c are true
4 only c is true
Explanation:
d
**NLI Expert**
TEST SERIES (PHYSICS FST)
266453
Two coherent sources produce waves of different intensities which interfere after interference the ratio of the maximum intensity to the minimum intensity is 16. The intensity of the waves are in the ratio:
1 \(4: 1\)
2 \(25: 9\)
3 \(16: 9\)
4 \(5: 3\)
Explanation:
b \[ \begin{aligned} & \frac{I_{\max }}{I_{\min }}=16 \\ & \frac{A_{\max }}{A_{\min }}=4 \\ & \frac{A_1+A_2}{A_1-A_2}=\frac{4}{1} \end{aligned} \] using componendo and divideno \[ \frac{A_1}{A_2}=\frac{5}{3} \Rightarrow \frac{I_1}{I_2}=\left(\frac{5}{3}\right)^2=\frac{25}{9} \]
**NCERT-XII-II-362**
TEST SERIES (PHYSICS FST)
266454
When unpolarised light beam is incident from air into glass ( \(n=1.5\) ) at the polarising angle:
1 Reflected beam is polarised 100 percent
2 Reflected and refracted beams are partially polarised
3 The reason for (a) is that almost all the light is reflected
4 All of the above
Explanation:
a Reflected beam is polarised 100 percent
**NCERT-XII-II-279**
TEST SERIES (PHYSICS FST)
266455
Assertion: The force of repulsion between atomic nucleus and \(\alpha\)-particle varies with distance according to inverse square law. Reason: Electrons were discovered by J.J. Thomson
1 If both assertion and reason are true and the reason is the correct explanation of the assertion
2 If both assertion and reason are true but reason is not the correct explanation of the assertion
NEET Test Series from KOTA - 10 Papers In MS WORD
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TEST SERIES (PHYSICS FST)
266447
The ratio of de Broglie wavelength of molecules of hydrogen and helium in two gas jars kept separately at temperature of \(27^{\circ}\) and \(127^{\circ}\) respectively is:
266452
Which of the following statements. are correct. (a) Work done by normal reaction is a body placed on a surface is always zero. (b) Friction force is a self adjusting force (c) Upthrust on a body dipped in a liquid is a contact force
1 All a, b, c are true
2 a and b are true
3 band c are true
4 only c is true
Explanation:
d
**NLI Expert**
TEST SERIES (PHYSICS FST)
266453
Two coherent sources produce waves of different intensities which interfere after interference the ratio of the maximum intensity to the minimum intensity is 16. The intensity of the waves are in the ratio:
1 \(4: 1\)
2 \(25: 9\)
3 \(16: 9\)
4 \(5: 3\)
Explanation:
b \[ \begin{aligned} & \frac{I_{\max }}{I_{\min }}=16 \\ & \frac{A_{\max }}{A_{\min }}=4 \\ & \frac{A_1+A_2}{A_1-A_2}=\frac{4}{1} \end{aligned} \] using componendo and divideno \[ \frac{A_1}{A_2}=\frac{5}{3} \Rightarrow \frac{I_1}{I_2}=\left(\frac{5}{3}\right)^2=\frac{25}{9} \]
**NCERT-XII-II-362**
TEST SERIES (PHYSICS FST)
266454
When unpolarised light beam is incident from air into glass ( \(n=1.5\) ) at the polarising angle:
1 Reflected beam is polarised 100 percent
2 Reflected and refracted beams are partially polarised
3 The reason for (a) is that almost all the light is reflected
4 All of the above
Explanation:
a Reflected beam is polarised 100 percent
**NCERT-XII-II-279**
TEST SERIES (PHYSICS FST)
266455
Assertion: The force of repulsion between atomic nucleus and \(\alpha\)-particle varies with distance according to inverse square law. Reason: Electrons were discovered by J.J. Thomson
1 If both assertion and reason are true and the reason is the correct explanation of the assertion
2 If both assertion and reason are true but reason is not the correct explanation of the assertion
266447
The ratio of de Broglie wavelength of molecules of hydrogen and helium in two gas jars kept separately at temperature of \(27^{\circ}\) and \(127^{\circ}\) respectively is:
266452
Which of the following statements. are correct. (a) Work done by normal reaction is a body placed on a surface is always zero. (b) Friction force is a self adjusting force (c) Upthrust on a body dipped in a liquid is a contact force
1 All a, b, c are true
2 a and b are true
3 band c are true
4 only c is true
Explanation:
d
**NLI Expert**
TEST SERIES (PHYSICS FST)
266453
Two coherent sources produce waves of different intensities which interfere after interference the ratio of the maximum intensity to the minimum intensity is 16. The intensity of the waves are in the ratio:
1 \(4: 1\)
2 \(25: 9\)
3 \(16: 9\)
4 \(5: 3\)
Explanation:
b \[ \begin{aligned} & \frac{I_{\max }}{I_{\min }}=16 \\ & \frac{A_{\max }}{A_{\min }}=4 \\ & \frac{A_1+A_2}{A_1-A_2}=\frac{4}{1} \end{aligned} \] using componendo and divideno \[ \frac{A_1}{A_2}=\frac{5}{3} \Rightarrow \frac{I_1}{I_2}=\left(\frac{5}{3}\right)^2=\frac{25}{9} \]
**NCERT-XII-II-362**
TEST SERIES (PHYSICS FST)
266454
When unpolarised light beam is incident from air into glass ( \(n=1.5\) ) at the polarising angle:
1 Reflected beam is polarised 100 percent
2 Reflected and refracted beams are partially polarised
3 The reason for (a) is that almost all the light is reflected
4 All of the above
Explanation:
a Reflected beam is polarised 100 percent
**NCERT-XII-II-279**
TEST SERIES (PHYSICS FST)
266455
Assertion: The force of repulsion between atomic nucleus and \(\alpha\)-particle varies with distance according to inverse square law. Reason: Electrons were discovered by J.J. Thomson
1 If both assertion and reason are true and the reason is the correct explanation of the assertion
2 If both assertion and reason are true but reason is not the correct explanation of the assertion
266447
The ratio of de Broglie wavelength of molecules of hydrogen and helium in two gas jars kept separately at temperature of \(27^{\circ}\) and \(127^{\circ}\) respectively is:
266452
Which of the following statements. are correct. (a) Work done by normal reaction is a body placed on a surface is always zero. (b) Friction force is a self adjusting force (c) Upthrust on a body dipped in a liquid is a contact force
1 All a, b, c are true
2 a and b are true
3 band c are true
4 only c is true
Explanation:
d
**NLI Expert**
TEST SERIES (PHYSICS FST)
266453
Two coherent sources produce waves of different intensities which interfere after interference the ratio of the maximum intensity to the minimum intensity is 16. The intensity of the waves are in the ratio:
1 \(4: 1\)
2 \(25: 9\)
3 \(16: 9\)
4 \(5: 3\)
Explanation:
b \[ \begin{aligned} & \frac{I_{\max }}{I_{\min }}=16 \\ & \frac{A_{\max }}{A_{\min }}=4 \\ & \frac{A_1+A_2}{A_1-A_2}=\frac{4}{1} \end{aligned} \] using componendo and divideno \[ \frac{A_1}{A_2}=\frac{5}{3} \Rightarrow \frac{I_1}{I_2}=\left(\frac{5}{3}\right)^2=\frac{25}{9} \]
**NCERT-XII-II-362**
TEST SERIES (PHYSICS FST)
266454
When unpolarised light beam is incident from air into glass ( \(n=1.5\) ) at the polarising angle:
1 Reflected beam is polarised 100 percent
2 Reflected and refracted beams are partially polarised
3 The reason for (a) is that almost all the light is reflected
4 All of the above
Explanation:
a Reflected beam is polarised 100 percent
**NCERT-XII-II-279**
TEST SERIES (PHYSICS FST)
266455
Assertion: The force of repulsion between atomic nucleus and \(\alpha\)-particle varies with distance according to inverse square law. Reason: Electrons were discovered by J.J. Thomson
1 If both assertion and reason are true and the reason is the correct explanation of the assertion
2 If both assertion and reason are true but reason is not the correct explanation of the assertion