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The volume occupied by the molecules contained in $4.5 \text{ kg}$ water at STP, if the molecular forces vanish away, is:
At $10^\circ\text{C}$ the value of the density of a fixed mass of an ideal gas divided by its pressure is $x$. At $110^\circ\text{C}$ this ratio is:
The following figures show the arrangement of bar magnets in different configurations. Each magnet has a magnetic dipole moment. Which configuration has the highest net magnetic dipole moment?
A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when:
A monoatomic gas at a pressure $p$, having a volume $V$ expands isothermally to a volume $2V$ and then adiabatically to a volume $16V$. The final pressure of the gas is: (take $\gamma = 5/3$)
The amount of energy required to form a soap bubble of radius $2 \text{ cm}$ from a soap solution is nearly: (Given: surface tension of soap solution $= 0.03 \text{ N m}^{-1}$)
A body of mass $6 \text{ kg}$ is moving from its initial position $A$ to the next position $B$ as shown in the figure. From $A$ to $B$, the value of the momentum of the body is (in SI units):
A certain number of spherical drops of a liquid of radius $r$ coalesce to form a single drop of radius $R$ and volume $V$. If $T$ is the surface tension of the liquid, then:
Match the items given in Column-I with those in Column-II and select the correct option given below: Column I (a) Cristae (b) Cisternae (c) Thylakoids Column II (i) Flat membranous sacs in stroma (ii) Infoldings in mitochondria (iii) Disc-shaped sacs in Golgi apparatus
The amount of heat energy required to raise the temperature of 1 g of Helium at NTP, from $T_1$ K to $T_2$ K is:
A bar magnet of length $l$ and magnetic dipole moment $M$ is bent in the form of an arc as shown in the figure. The new magnetic dipole moment will be:
Wavelength of ray of light is 0.00006 m. It is equal to:
Nickel shows the ferromagnetic property at room temperature. If the temperature is increased beyond Curie's temperature, then it will show:
An engine pumps water continuously through a hose. Water leaves the hose with a velocity $v$ and $m$ is the mass per unit length of the water jet. What is the rate at which kinetic energy is imparted to water?
A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field and is in the equilibrium state. The energy required to rotate it by $60^\circ$ is $W$. Now the torque required to keep the magnet in this new position is:
A particle of mass $m$ is projected with velocity $v$ making an angle of $45^\circ$ with the horizontal. When the particle lands on level ground, the magnitude of change in its momentum will be:
In the given figure, $a=15 \text{ m/s}^2$ represents the total acceleration of a particle moving in the clockwise direction in a circle of radius $R=2.5 \text{ m}$ at a given instant of time. The speed of the particle is:
Given below are two statements: Assertion (A): The stretching of a spring is determined by the shear modulus of the material of the spring. Reason (R): A coil spring of copper has more tensile strength than a steel spring of the same dimensions.
A soap bubble, having a radius of $1 \text{ mm}$, is blown from a detergent solution having a surface tension of $2.5 \times 10^{-2} \text{ N/m}$. The pressure inside the bubble equals the pressure at a point $Z_0$ below the free surface of the water in a container. Taking $g = 10 \text{ m/s}^2$ and the density of water $\rho = 10^3 \text{ kg/m}^3$, the value of $Z_0$ is:
The correct statement regarding a solution of two components A and B exhibiting positive deviation from ideal behaviour is: