Assertion (A): The critical angle of light passing from glass to air is minimum forviolet colour2026

A charged particle is projected along axis of a current carrying loop.Which of following statements

Which of the following transitions corresponds to the emission of radiation of maximum wavelength?

The light from a monochromatic source is incident on a single slit and resulting diffraction pattern

Light passes from a certain medium into air.The critical angle of the given medium is O,which of

Which of the following statement is true for the radio waves and the gamma rays/sample paper 2026

If the phasor diagram for a device connected to AC supply is as shown in the fig, then which of the

A coil contains N turns of insulated copper wire of diameter d and resistivity p wound on a cylinder

If a charged hollow sphere and a solid sphere of aluminum and copper of equal radii are in electrost

q29 If the speed of the electron is now doubled to 2 vo. The radius of the circle will change to 2r

State Gauss᾿s theorem in electrostatics. Using this theorem, derive an expression for electric field

A ray of light is incident on an equilateral prism at an angle 3/4 of the angle of the prism.If ray

Q27.. A light ray entering a right-angled prism undergoes refraction at the face AC as shown in Fig1

Explain briefly how barrier potential is formed in p-n junction diode.Width of depletion region 2025

Q25.Draw the energy band diagram for P-type semiconductor at (i) T=0K and room temperature2bulb glow

23Find expression for capacitance of a parallel plate capacitor of plate area A and plate separation

A Cassegrain telescope is built with an arrangement of two mirrors placing them 20mm apart.If radius

Q24Draw a ray diagram for formation of image by a Cassegrain telescope/Why these types of telescopes

21Identify the circuit elements X and Y as shown in given block diagram and draw output waveforms

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Q21A cylindrical conductor of length l and cross-section area A is connected to DC source.Under2024

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Binding energy per nucleon and mass number of the following nuclei are given in the below table

Q.20Binding energy per nucleon vs mass number curve for nuclei is shown in the figure. W, X, Y and Z

Q19 P and Q are two identical charged particles each of mass 4×10–26kg and charge 4.8×10–19C,each mo

A proton is moving with speed of 2x105 m/s enters a uniform magnetic field B = 1.5 T.entry velocity

In Young’s double-slit experiment using monochromatic light of wavelength λ,intensities two sources

Q17A platinum surface having work function 5.63eV is illuminated by a monochromatic source of1.6x10

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Q15Assertion Nuclei having mass number about 60 are least stable. Reason When two or more light

Assertion In a hydrogen atom there is only one electron but its emission spectrum shows many lines

Q16. Assertion (A): de Broglie's wavelength of a freely falling body keeps decreasing with time

Assertion (A) On increasing the current sensitivity of a galvanometer by increasing number of turns

Q12If copper wire is stretched to make its radius decrease by 0.1%then percentage change resistance

Q11. The number of electrons made available for conduction by dopant atoms depends strongly upon

Q10. Colours observed on a CD (Compact Disk) is due to(A) Reflection (B) Diffraction (C) Dispersion

A point object is placed at the centre of a glass sphere of radius 6 cm and refractive index 1.5

The distance of closest approach of an alpha particle is d when it moves with a speed V towards nuc

The diffraction effect can be observed in sound waves as well as light waves/sample paper physics 24

Q7. Correct match of column I with column II isC-l (waves) C-ll (Production Infra-red, radio, light

In a series LCR circuit, the voltage across the resistance, capacitance and inductance is 10 V each

A capacitor consists of two parallel plates with an area of cross-section of 0.001 m2, separated by

A long straight wire of circular cross section of radius ҅ a carries a steady current I.The current

a conducting wire connects two charged conducting spheres of radii r1 and r2 such that they attain

A uniform electric field pointing in positive X-direction exists in a region.Let A be the origin,B

Find the currents flowing through the branches AB and BC in the network shown/cbse2024 physics paper

Differentiate between nuclear fission and fusion/fission properties of 94Pu239 are similar to 92U235

Define distance of closest approach/derive expression for distance of closest approach

Draw graph showing variation of scattered particles detected N with scattering angle Geiger-Maraden

Two long insulated straight wires carrying currents of 3A and 5A arearranged in XY plane as shown in

A thin spherical conducting shell of radius R has a charge q.A point charge Q placed centre of shell

CBSE 2024 CLASS 12 PHYSICS PAPER SOLUTION/PHYSICS 2024 PHYSICS 2 MARKS QUESTIONS/2024 CBSE PHYSICS

Draw the circuit diagram of a p-n junction diode in(i) forward biasing and (ii) reverse biasing I-V

Two wires A and B of different metals have their lengths in ratio 1: 2 and their radii in ratio 2: 1

A ray of light is incident normally on one face of an equilateral glass prism of refractive index

What are matter waves? A proton,an electron and an Alfa particle have same kinetic energy.de Broglie

In normal adjustment, for a refracting telescope,distance between obiective and eye piece lens is 1m

17 a) An air bubble is trapped at point B(CB =20 cm)in glass Sphere radius 40cm refractive index1.5

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An ac source V=282 sin (100 t) volt isconnected across a 1 microfarad capacitor.rms value of current