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Maximum number of electrons in a subshell with l = 3 and n = 4 is:
Diaphragms, cervical caps and vaults are:
Which of the following velocity-time graphs shows a realistic situation for a body in motion?
If the principal quantum number n=6, the correct sequence of filling of electrons will be:
If the mass of the sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following statements would not be correct?
Among fraternal twins, one baby is haemophilic while the baby's brother is normal. Which statement is true?
A genetic map is one that:
The kinetic energies of a planet in an elliptical orbit around the Sun, at positions A, B and C are $K_A$, $K_B$ and $K_C$ respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S, as shown in the figure. Then:
The measurement of the electron position is associated with an uncertainty in momentum which is equal to $1 \times 10^{-18} \text{ g cm s}^{-1}$. The uncertainty in velocity of the electron will be: (mass of an electron is $9 \times 10^{-28} \text{ g}$)
If a female individual is with small round head, furrowed tongue, partially open mouth and broad palm with characteristic palm crease. Also the physical, psychomotor and mental development is retarded. The karyotype analysis of such an individual will show :
The probability of four sons to a couple is:
Which of the following statements is not correct?
What is the maximum number of orbitals that can be identified with the following quantum numbers? n = 3, l = 1, m = 0
The linkage map of the X-chromosome of fruitfly has 66 units, with yellow body gene (y) at one end and bobbed hair (b) gene at the other end. The recombination frequency between these two genes (y and b) should be:
Which scientist conducted an experiment with 32P and 35S labelled phages for demonstrating that DNA is the genetic material?
In context of amniocentesis, which of the following statement is incorrect?
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
Time taken by an object falling from rest to cover the height of $h_1$ and $h_2$ is respectively $t_1$ and $t_2$. Then the ratio of $t_1$ to $t_2$ is:
F2 generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as 1:2:1. It represents a case of:
In a common-emitter transistor amplifier, the audio signal voltage across the collector is $3\text{ V}$. The resistance of the collector is $3\text{ k}\Omega$. If the current gain is $100$ and the base resistance is $2\text{ k}\Omega$, the voltage and power gain of the amplifier are: