NEET Test Series from KOTA - 10 Papers In MS WORD
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TEST SERIES (PHYSICS FST)
263939
A vessel containing water is given a constant acceleration a towards the right, along a straight horizontal path. Which of the following diagram represents the surface of the liquid:
1 A
2 B
3 C
4 D
Explanation:
c As we know to acceleration in forward direction. vessel is an accelerated frame. Thus a pseudo force will be excrted in back direction, so water will be displaced i back word direction.
**NLI Expert**
TEST SERIES (PHYSICS FST)
263940
The speed of sound in oxygen \(\left\{\mathrm{O}_2\right\}\) at a certain temperature is \(460 \mathrm{~ms}^{-1}\). The speed of sound in helium (He) at the same temperature will be (assume both gases to be ideal):
1 \(500 \mathrm{~ms}^{-1}\)
2 \(650 \mathrm{~ms}^{-1}\)
3 \(330 \mathrm{~ms}^{-1}\)
4 \(1420 \mathrm{~ms}^{-1}\)
Explanation:
d Speed of sound is given by \(v=\sqrt{\frac{\mathrm{RT}}{\mathrm{M}}}\) \(\gamma_{\mathrm{O}_2}=\frac{7}{5}, M_{\mathrm{C}_2}=32, \gamma_{\mathrm{He}}=4\) \(\frac{v_{\mathrm{O}_2}}{v_{\mathrm{He}}}=\sqrt{\frac{7 \times 3 \times 4}{5 \times 5 \times 32}}=v_{\mathrm{He}}=1420 \mathrm{~m} / \mathrm{s}\)
**NCERT-XI-II-286**
TEST SERIES (PHYSICS FST)
263941
A bullet is fired with a velocity \(u\) making an angle of \(60^{\circ}\) with the horizontal plane. The horizontal component of the velocity of the bullet when it reaches the maximum height is:
1 U
2 0
3 \(\frac{\sqrt{3 u}}{2}\)
4 \(\mathrm{u} / 2\)
Explanation:
d
**NCERT-XI-I-39**
TEST SERIES (PHYSICS FST)
263942
The ratio of the radii of planets \(A\) and \(B\) is \(k_1\) and ratio of acceleration due to gravity on them is \(\mathbf{k}_2\). The ratio of escape velocities from them will be:
263939
A vessel containing water is given a constant acceleration a towards the right, along a straight horizontal path. Which of the following diagram represents the surface of the liquid:
1 A
2 B
3 C
4 D
Explanation:
c As we know to acceleration in forward direction. vessel is an accelerated frame. Thus a pseudo force will be excrted in back direction, so water will be displaced i back word direction.
**NLI Expert**
TEST SERIES (PHYSICS FST)
263940
The speed of sound in oxygen \(\left\{\mathrm{O}_2\right\}\) at a certain temperature is \(460 \mathrm{~ms}^{-1}\). The speed of sound in helium (He) at the same temperature will be (assume both gases to be ideal):
1 \(500 \mathrm{~ms}^{-1}\)
2 \(650 \mathrm{~ms}^{-1}\)
3 \(330 \mathrm{~ms}^{-1}\)
4 \(1420 \mathrm{~ms}^{-1}\)
Explanation:
d Speed of sound is given by \(v=\sqrt{\frac{\mathrm{RT}}{\mathrm{M}}}\) \(\gamma_{\mathrm{O}_2}=\frac{7}{5}, M_{\mathrm{C}_2}=32, \gamma_{\mathrm{He}}=4\) \(\frac{v_{\mathrm{O}_2}}{v_{\mathrm{He}}}=\sqrt{\frac{7 \times 3 \times 4}{5 \times 5 \times 32}}=v_{\mathrm{He}}=1420 \mathrm{~m} / \mathrm{s}\)
**NCERT-XI-II-286**
TEST SERIES (PHYSICS FST)
263941
A bullet is fired with a velocity \(u\) making an angle of \(60^{\circ}\) with the horizontal plane. The horizontal component of the velocity of the bullet when it reaches the maximum height is:
1 U
2 0
3 \(\frac{\sqrt{3 u}}{2}\)
4 \(\mathrm{u} / 2\)
Explanation:
d
**NCERT-XI-I-39**
TEST SERIES (PHYSICS FST)
263942
The ratio of the radii of planets \(A\) and \(B\) is \(k_1\) and ratio of acceleration due to gravity on them is \(\mathbf{k}_2\). The ratio of escape velocities from them will be:
263939
A vessel containing water is given a constant acceleration a towards the right, along a straight horizontal path. Which of the following diagram represents the surface of the liquid:
1 A
2 B
3 C
4 D
Explanation:
c As we know to acceleration in forward direction. vessel is an accelerated frame. Thus a pseudo force will be excrted in back direction, so water will be displaced i back word direction.
**NLI Expert**
TEST SERIES (PHYSICS FST)
263940
The speed of sound in oxygen \(\left\{\mathrm{O}_2\right\}\) at a certain temperature is \(460 \mathrm{~ms}^{-1}\). The speed of sound in helium (He) at the same temperature will be (assume both gases to be ideal):
1 \(500 \mathrm{~ms}^{-1}\)
2 \(650 \mathrm{~ms}^{-1}\)
3 \(330 \mathrm{~ms}^{-1}\)
4 \(1420 \mathrm{~ms}^{-1}\)
Explanation:
d Speed of sound is given by \(v=\sqrt{\frac{\mathrm{RT}}{\mathrm{M}}}\) \(\gamma_{\mathrm{O}_2}=\frac{7}{5}, M_{\mathrm{C}_2}=32, \gamma_{\mathrm{He}}=4\) \(\frac{v_{\mathrm{O}_2}}{v_{\mathrm{He}}}=\sqrt{\frac{7 \times 3 \times 4}{5 \times 5 \times 32}}=v_{\mathrm{He}}=1420 \mathrm{~m} / \mathrm{s}\)
**NCERT-XI-II-286**
TEST SERIES (PHYSICS FST)
263941
A bullet is fired with a velocity \(u\) making an angle of \(60^{\circ}\) with the horizontal plane. The horizontal component of the velocity of the bullet when it reaches the maximum height is:
1 U
2 0
3 \(\frac{\sqrt{3 u}}{2}\)
4 \(\mathrm{u} / 2\)
Explanation:
d
**NCERT-XI-I-39**
TEST SERIES (PHYSICS FST)
263942
The ratio of the radii of planets \(A\) and \(B\) is \(k_1\) and ratio of acceleration due to gravity on them is \(\mathbf{k}_2\). The ratio of escape velocities from them will be:
263939
A vessel containing water is given a constant acceleration a towards the right, along a straight horizontal path. Which of the following diagram represents the surface of the liquid:
1 A
2 B
3 C
4 D
Explanation:
c As we know to acceleration in forward direction. vessel is an accelerated frame. Thus a pseudo force will be excrted in back direction, so water will be displaced i back word direction.
**NLI Expert**
TEST SERIES (PHYSICS FST)
263940
The speed of sound in oxygen \(\left\{\mathrm{O}_2\right\}\) at a certain temperature is \(460 \mathrm{~ms}^{-1}\). The speed of sound in helium (He) at the same temperature will be (assume both gases to be ideal):
1 \(500 \mathrm{~ms}^{-1}\)
2 \(650 \mathrm{~ms}^{-1}\)
3 \(330 \mathrm{~ms}^{-1}\)
4 \(1420 \mathrm{~ms}^{-1}\)
Explanation:
d Speed of sound is given by \(v=\sqrt{\frac{\mathrm{RT}}{\mathrm{M}}}\) \(\gamma_{\mathrm{O}_2}=\frac{7}{5}, M_{\mathrm{C}_2}=32, \gamma_{\mathrm{He}}=4\) \(\frac{v_{\mathrm{O}_2}}{v_{\mathrm{He}}}=\sqrt{\frac{7 \times 3 \times 4}{5 \times 5 \times 32}}=v_{\mathrm{He}}=1420 \mathrm{~m} / \mathrm{s}\)
**NCERT-XI-II-286**
TEST SERIES (PHYSICS FST)
263941
A bullet is fired with a velocity \(u\) making an angle of \(60^{\circ}\) with the horizontal plane. The horizontal component of the velocity of the bullet when it reaches the maximum height is:
1 U
2 0
3 \(\frac{\sqrt{3 u}}{2}\)
4 \(\mathrm{u} / 2\)
Explanation:
d
**NCERT-XI-I-39**
TEST SERIES (PHYSICS FST)
263942
The ratio of the radii of planets \(A\) and \(B\) is \(k_1\) and ratio of acceleration due to gravity on them is \(\mathbf{k}_2\). The ratio of escape velocities from them will be:
