A particular station of All India Radio, New Delhi, broadcasts on a frequency of 1,368 kHz (kilohertz). The wavelength of the electromagnetic radiation emitted by the transmitter is : [speed of light, ]
1. 2192 m
2. 21.92 cm
3. 219.3 m
4. 219.2 m
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of protons, neutrons and electrons in , respectively, are:
1. 104, 71 and 71
2. 71, 71 and 104
3. 175, 104 and 71
4. 71, 104 and 71
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of angular nodes and radial nodes in 3s orbital are
1. 0 and 2, respectively
2. 1 and 0, respectively
3. 3 and 0, respectively
4. 0 and 1, respectively
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is:
1. 5f>6p>4d>5p
2. 5f>6p>5p>4d
3. 6p>5f>5p>4d
4. 6p>5f>4d>5p
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following series of transitions in the spectrum of hydrogen atom falls in visible region?
1. Brackett series
2. Lyman series
3. Balmer series
4. Paschen series
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyOrbital having 3 angular node and 3 total nodes is:
1. 5 p
2. 3 d
3. 4 f
4. 6 d
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe incorrect statement among the following is
1. Total orbital angular momentum of an electron in 's' orbital is equal to zero.
2. An orbital is designated by three quantum numbers, while an electron in an atom is designated by four quantum numbers.
3. The electronic configuration of N atom is
4. The value of m for dz2 is zero.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe element Z = 114 has been discovered recently.
It will belong to which of the following family/group and electronic configuration.
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is wrong?
1. The uncertainty principle is
2. Half-filled and fully filled orbitals have greater stability due to greater exchange energy,
greater symmetry, and a more balanced arrangement.
3. The energy of the 2s orbital is less than the energy of the 2p orbital in the case of hydrogen-like atoms.
4. De-Broglie's wavelength is given by , where m= mass of the particle, v = group velocity of the particle.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHow many electrons can fit in the subshell for which n = 3 and l = 1?
1. 2
2. 6
3. 10
4. 14
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology