Two convex lenses A and B each of focal length 10.0 cm are mounted on an optical bench at 50.0 cm

Two small identical electric dipole AB and CD each dipole moment p are kept at an angle of 120° to

A small object with charge q and weight mg is attached to one end of a string of length L. The other

Statement I: When currents vary with time, Newton's third law is valid only if momentum carried by

Radioactive decay follows first order kinetics. The initial amount of two radioactive elements X and

An electron projected perpendicular to a uniform magnetic field B moves in a circle. If Bohr's

Let B1 be the magnitude of magnetic field at center of a circular coil of radius R carrying current

If oxygen ion (O²⁻) and Hydrogen ion (H⁺) enter normal to the magnetic field with equal momentum

Uniform magnetic fields of different strengths (B1 and B2) both normal to the plane of the paper

A particle of charge q, mass m and kinetic energy E enters in magnetic field perpendicular to its

Figure shows a current carrying square loop ABCD of edge length is 'a' lying in a plane.If the

The equivalent resistance between A and B is [ JEE Main - 30 Jan ,2023 ( Shift - II ) ]

The equivalent resistance between A and B is

The equivalent emf of two nonideal batteries connected in parallel is smaller than either of the two

A galvanometer having a coil of resistance 30 Ω need 20 mA of current for full-scale deflection. If

In the circuit shown here, assuming threshold voltage of diode is negligibly small, then voltage VAB

A wire of length 25 m and cross-sectional area 5 mm2 having resistivity of 2 × 10–6 ohm-m is bent in

A motor operating on 100 V draws a current of 1 A. If the efficiency of the motor is 91.6% then the

There are ‘n’ number of identical electric bulbs each is designed to draw a power p independently

Identify the valid statements relevant to the given circuit at the instant when the key is closed

A compound 'X' absorbs 2 moles of hydrogen and 'X' upon oxidation with KMnO4 | H+ gives

Consider a long straight wire of a circular cross-section (radius a) carrying a steady current I the

An electric dipole of mass m, charge q, and length l is placed in a uniform electric field E = E₀ i

Consider the following sequence of reaction

Let u and v be the distances of the object and the image from a lens of focal length f. The correct

A small compass needle of magnetic moment M is free to turn about an axis perpendicular to the

1, 2-dibromocyclooctane react with (i) KOH (alc.)(ii) NaNH2(iii) Hg2+/H+(iv) Zn-Hg/H ——— P(Major )

A 10 V cell of negligible internal resistance is connected in parallel across a battery of emf 200 V

A battery of emf 12V and internal resistance 2 ohm is connected to a 4 ohm resistor as shown in the

The current is drawn from a cell of emf E and iternal resitance r connected to the network of

Three resistors having resistances r1, r2 and r3 are connected as shown in the given circuit. The

Three resistors having value R1,R2and R3 are connected in series to a battery suppose R1 carries a

The two lines (x-1)/3=-y ,z+1=0 and -x/2=(y+10/2 =z+2 intersect at a point whose y coordinate is 1

Two sources of equal emf are connected in series.This combination isin turn connected to an external

A city's traffic management department is planning to optimize traffic flow by analyzing the connect

In the two electric circuits shown in the figure determine the readings of the ideal ammeter(A) and

I-V graph for a metallie wire at two different tempearture T1and T2 is as shown in the figure.Which

Two aeroplanes I and II bomb a target in succession. The probabilities of I and II scoring a hit

A straight line plot showing the terminal potential difference of a cell as a function of current

Calculate the number of units of electricity used if a bulb of 100 W is kept on for 5 hours

calculate the enthalpy change on freezing 1.0 mol of water at 10.0^∘C to ice at -10.0^∘C

A bird is flying through a distance in a straight line given by the vector i+2j+k. A man standing

Projection of a vector | Vector Algebra | Grade 12 | Math

If 𝑓(𝑎 + 𝑏 − 𝑥) = 𝑓(𝑥), then ∫ 𝑥 𝑓(𝑥)𝑑𝑥 𝑏 𝑎 is equal to (A) 𝑎+𝑏 2 ∫ 𝑓(𝑏 − 𝑥)𝑑𝑥 𝑏 𝑎 (B) 𝑎+𝑏

Which of the following has negative temperature coefficient of resistivity

A battery is connected to the conductor of non-uniform cross-section area. The quantities or

A uniform wire of resistance 12 Ω is cut into three pieces in the ratio 1:2:3 and the three pieces

A constant voltage is applied between the two ends of a uniform metallic wire, heat 'H' is developed

An electric current is passed through a circuit containing two wires of the same material connected

If f(x + y)=f(x) f(y) for all x ,y ⋳ R and f(5)=2 ,f'(0)=3 then using the definition of derivatives

The temperature (T) dependence of resistivity of materials A and material B is represented by figure

what is the maximum area of the sports field alone

the government wants to maximise the area including parking area for this to happen value of y is

the maximum area of sports ground is for x equal to

The government of a state which has mostly hilly area decided to have adventurous playground on the

Find equivalent capacitance between A and B in the combination given below. Each capacitor is of 2µF

In the figure given below find the (a) equivalent Capacitance of the network between points A and B.

The electric potential V as a function of distance X is shown in figure.The graph of magnitude of E

a thin metallic spherical shell of radius R carries a charge Q on its surface a point charge Q/2 is

A spherical conducting shell has a charge of -14 mC on its outer surface and a charged particle in