Latest Posts

In Freundlich isotherm, [latex]frac{x}{m}propto {{P}^{a}}.[/latex] Find the value of a from the following graph

a. \(\begin{array}{l}\frac{2}{3}\end{array} \) b. \(\begin{array}{l}\frac{1}{3}\end{array} \) c. \(\begin{array}{l}\frac{3}{2}\end{array} \) d. 1 Answer : (a) Freundlich Isotherm equations: \(\begin{array}{l}\log \frac{x}{m}=\log k+\frac{1}{n}\log... View Article

Which of the following is not correct for an ideal gas as per first low of thermodynamics

a. Adiabatic ΔU = -w b. Isothermal q = -w c. cyclic q = -w d. Isochoric ΔU = q... View Article

Find the compound ‘X’ which give following test.

Neutral FeCl3 -ve Fehling solution -ve Iodoform reaction +ve Grignard reagent +ve Answer: (a) Neutre Fecl3 → – ve (phenol... View Article

Choose the correct options for the given reaction

Answer: (a) Two reaction occur simultaneously a) Ether hydrolysis using HBr b) Electrophilic addition of H-Br

Choose the correct options for the given reaction

Answer: (c) In a2o coupling reaction, the Hydrogen is taken from the less hindered para position.

In the following, X will be:

Answer: (c)

The free length of all four string is varied from L0 to 2L0. Find the maximum fundamental frequency of 1, 2, 3, 4 in terms of f0 (tension is same in all strings)

a) String – 1 (P) 1 b) String – 2 (Q) 1/2 c) String – 3 (R) 1/√2 d) String... View Article

Length of string of a musical instrument is varied from L_o to 2L_o in 4 different cases. Wire is made of different materials of mass per unit length μ, 2μ, 3μ, 4μ respectively. For first case (string – 1) length is L_o, Tension is T_o then fundamental frequency is f_o, for second case length of the string is 3L_0/2 (3rd Harmonic), for third case length of the string is 5L₀/4 (5th Harmonic) and for the fourth case length of the string is 7L₀/4 (14th harmonic). If frequency of all is same then tension in strings in terms of T_o will be:

a) String – 1 (P) T0 b) String – 2 (Q) T0/√2 c) String – 3 (R) T0/2 d) String... View Article

The sample of monoatomic gas undergoes a process as represented by T – V graph (if P₀V₀ = 1/3 RT₀) then

(P) W1->2 = 1/3 RT0 ln 2 (Q) Q1->2->3 = 1/6 RT0 (2 ln (2) + 3 ) (R) U1->2... View Article

The sample of monoatomic gas undergoes a process as represented by P – V graph (if P₀V₀ = 1/3 RT₀) then

(P) W1->2 = 1/3 RT0 (Q) Q1->2->3 = 11/6 RT0 (R) U1->2 = RT0/2 (S) W1->2->3 = 1/3 RT0 Which... View Article

Perfectly reflecting mirror of mass M mounted on a spring constitute a spring mass system of angular frequency Ω such that [4πMΩ]/h = 10²⁴ m^-2 where h is plank constant. N photons of wavelength λ = 8π x 10^-6 m strikes the mirror simultaneously at normal incidence such that the mirror gets displaced by 1 μm. If the value of N is x * 10¹², then find the value of x.

Photons are reflected MV = 2Nh/λ [mean] Vmean = αA A = 1 min N = \(\begin{array}{l}\frac{m \alpha 10^{-6} \lambda}{2h}\end{array}... View Article

A prism is shown in the figure with prism angle 75° and refractive index √3. A light ray incidents on a surface at incident angle θ. Other face is coated with a medium of refractive index n. For θ ≤ 60⁰ ray suffers total internal reflection find value of n².

Answer: 1.5

In a given circuit inductor of L = 1mH and resistance R = 1Ω are connected in series to ends of two parallel conducting rods as shown. Now a rod of length 10 cm is moved with constant velocity of 1 cm/s in magnetic field B = 1T. If rod starts moving at t = 0 then current in circuit after 1 millisecond is x . 10^-3 A. Then value of x is: (given e^-1 = 0.37)

Answer: 0.63 mA e = (V x B) dl = 10-3 v df i = 10-3(1 – e-1) i =... View Article

Calculate the work done if a particle is moved along a path AB−BC−CD−DE−EF−FA, as shown in the figure in presence of a force [latex]vec{F} = (alpha yhat{ii} + 2alpha xhat{j})N[/latex], where x and y are in meter and [latex]alpha w = -1Nm^{-1}[/latex].

Answer: 0.75 J dω = αy dx + 2αx dx \(\begin{array}{l}\omega_{A \rightarrow B}= \int \alpha y dx = \alpha 1\int_0^1... View Article

«
1
…
2,438
2,439
2,440
2,441
2,442
…
5,472
»

Latest Posts

In Freundlich isotherm, [latex]frac{x}{m}propto {{P}^{a}}.[/latex] Find the value of a from the following graph

Which of the following is not correct for an ideal gas as per first low of thermodynamics

Find the compound ‘X’ which give following test.

Choose the correct options for the given reaction

Choose the correct options for the given reaction

In the following, X will be:

The free length of all four string is varied from L0 to 2L0. Find the maximum fundamental frequency of 1, 2, 3, 4 in terms of f0 (tension is same in all strings)

The sample of monoatomic gas undergoes a process as represented by T – V graph (if P₀V₀ = 1/3 RT₀) then

The sample of monoatomic gas undergoes a process as represented by P – V graph (if P₀V₀ = 1/3 RT₀) then

Identify the compound ‘X’

Compound ‘X’ will be

Write IUPAC name of the following compound

The correct order of K_b value of the following is

Reaction of dilute HCl with Maltose gives:

Which of the following amine will be prepared by Gabriel phthalimide reaction?

A prism is shown in the figure with prism angle 75° and refractive index √3. A light ray incidents on a surface at incident angle θ. Other face is coated with a medium of refractive index n. For θ ≤ 60⁰ ray suffers total internal reflection find value of n².

Calculate the work done if a particle is moved along a path AB−BC−CD−DE−EF−FA, as shown in the figure in presence of a force [latex]vec{F} = (alpha yhat{ii} + 2alpha xhat{j})N[/latex], where x and y are in meter and [latex]alpha w = -1Nm^{-1}[/latex].