ai test 1 Questions

In a vernier calipers, one main scale division is cm and division of the vernier scale coincide with division of the main scale. The least count (in cm) of the calipers is:

The period of oscillation of a simple pendulum in the experiment is recorded as 2.63 s, 2.56 s, 2.42 s, 2.71 s and 2.80 s respectively. The average absolute error is:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: If the percentage error in the measurement of radius of the sphere is 0.3%, then the permissible percentage error in its surface area i

If the length of rod A is cm and that of B is cm then the rod B is longer than rod A by:

The period of oscillation of a simple pendulum is given by where l is 100 cm and is known to have 1 mm accuracy. The time for 100 oscillations of the pendulum is found to be 200 s is measured by a stop watch of least count 0.1 s. The percentage error

In the density measurement of a cube, the mass and edge length are measured as kg and m, respectively. The relative error in the measurement of density is:

In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4% respectively. Then the maximum percentage error in the measurement of X, where will be:

If , , then

The number of significant figures is is:

If units of length, mass and pressure are chosen as fundamental units, the dimension of time would be:

The position x of a particle at time “t” is given by Where and are:

Suppose refractive index is given as Where A and B are constants and is the wavelength, then dimensions of B are same as that of:

A force (F), length (L) and time (T) are taken as the fundamental quantities. Then what will be the dimension of density?

The force is given in terms of time t and displacement x by the equation . The dimensional formula of AD/B is:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: Dimensional constants are the quantities whose magnitudes are constant. Reason R: Dimensional constants are always unitless. In the lig

Dimensions of , where T is tension and is mass per unit length, are:

The wavelength associated with a moving particle depends upon pth power of its mass, qth power of its velocity v and rth power of Planck's constant h. Then, the correct set of values of p, q and r is:

If momentum (P), area (A) and time (T) are taken to be fundamental quantities, then the dimensional formula for energy is:

In a vernier calliper, when both jaws touch each other, zero of the vernier scale shift towards left and its 4th division coincides exactly with a certain division on main scale. If 50 vernier scale divisions equal to 49 main scale divisions and zero

If & then will be:

⚠️ Diagram Detected: The AI detected a chemistry or physics diagram here. Please upload the image manually using the editor.The graph for the equation is;

If in a a right-angled triangle, , then find .

Value of = .

Find dimensional formula of surface tension 'S'. Use where F is force and l is the length.

A packet contains silver powder having mass . Some additional powder of mass is added to the packet, the total mass of the powder now is;

The roots of equation are;

A physical quantity P is given by the relation . If t denotes the time, the dimensional formula of constant a is;

The value of is; (c = integration constant)

In a particular system, the unit of length, mass and time are chosen to be 10 cm, 10 g and 0.1 sec respectively. The unit of force in this system will be equivalent to:

In an expression .

⚠️ Diagram Detected: The AI detected a chemistry or physics diagram here. Please upload the image manually using the editor.The following electronic configuration violates: 2s 2p ↑↓ ↑ ↑ ↑ A. Pauli's exclusion principle B. Aufbau's principle C. Hund's

The correct option as per Heisenberg's uncertainty principle is;

Maximum number of electrons present in a f-orbital is;

The cause of stability of completely filled and half filled subshell is/are; A. Symmetrical distribution of electron in subshell. B. Large exchange energy of electrons. C. Unsymmetrical distribution of electrons in subshell.

Ultraviolet light of 10.2 eV falls on cesium surface (work function = 1.2 eV). The kinetic energy of the fastest electron emitted will be;

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion (A): Energy of the orbitals for H-atom increases as 1s < 2s = 2p < 3s = 3p = 3d. Reason (R): Energy of orbitals in a multi-electron system

The series of lines corresponding to the given wave number for H-atom is;

Identify the correct statement from the following; (1) The shape of s-orbitals is spherical. (2) Shape of each d-orbital is same. (3) dxy and contain equal number of lobes. (4) Each p-orbital contains 4 lobes.

Among the following, energy of which orbital is maximum for Hydrogen atom?

The atoms having same mass number but different atomic number are;

Given below are two statements: Statement I: Magnetic orbital quantum number gives information about the spatial orientation of the orbital. Statement II: Size of an orbital increases with increase of principal quantum number ''. In the light of the

Two electromagnetic radiations have wave numbers in the ratio . Their energies per quanta will be in the ratio;

Which of the following statement is incorrect regarding cathode rays?

The series of line in H-spectrum which appears in the UV region of the electromagnetic spectrum is known as;

The expression, represents;

An element with atomic number 12 and mass number 24 will have;

A dye emits of the absorbed energy as fluorescence. If the number of quanta absorbed and emitted out is in the ratio and it absorbs the radiation of wavelength ‘', then the wavelength of the emitted radiation will be:

Total number of nodes present in 3p orbital is;

Which of the following set of quantum numbers is not possible? A. B. C. D.

The possible orbital for the value is;