റേഡിയേഷൻ ഉറവിടം നിർത്തുമ്പോൾ ഫ്ളൂറസെന്റ് വസ്തുക്കളുടെ തിളക്കം എങ്ങനെയാണ്?

പ്രതിദീപ്‌തിയുടെ രണ്ടാം ഘട്ടത്തിൽ ഉത്തേജിതമായ തന്മാത്ര എന്ത് ചെയ്യുന്നു?

പ്രതിദീപ്‌തിയുടെ ആദ്യ ഘട്ടത്തിൽ ഒരു ഫോട്ടോൺ എന്ത് ചെയ്യുന്നു?

ചൂടാക്കാത്ത ഒരു പദാർത്ഥം വഴി പ്രകാശം പുറന്തള്ളപ്പെടുന്ന പ്രതിഭാസത്തെ പൊതുവായി എന്ത് വിളിക്കുന്നു?

If the pressure of a gas is increased by two-fold at a constant volume, the work done by the gas will be _____?

2025 ഏപ്രിലിൽ അന്തരിച്ച മലയാളിയായ ഡോ. രഞ്ജിത്ത് നായർ ഏത് മേഖലയുമായി ബന്ധപ്പെട്ടിരിക്കുന്നു ?

Hooke's law establishes the relationship between which two physical quantities in elastic materials?

The brightest and largest fringe in the centre of an interference pattern is known as?

Adiabatic compression of an ideal gas results in _______?

If a magnetic field is applied perpendicular to the velocity of a charge moving in a straight line, the trajectory of the charge will be?

A transverse wave consists of ________ that make one cycle.

The number of significant figures in 1.73 seconds is__________?

Which type of wall is present in the closed system?

The distance travelled by an object in time 't' is given by x = a + bt+ct². Identify 'c'?

Devices like hydraulic brakes and hydraulic lifts operate based on which physical law or principle?

If a body of mass 'm' is taken to a height 'h' from the surface of earth, the work done will be?

1 Volt/1 Ampere =?

Reverberation is the persistence of sound after the source has stopped emitting sound due to ______ from multiple surfaces?

Water drops shine on a lotus leaf due to?

Which of the following is FALSE?

How does a dipole behave when it is placed in a uniform magnetic field?

The force acting on a charged particle in an external magnetic field does NOT depend on which of the following factors?

On which of the following scientific principles does a hydro electric power generator work?

According to Le Chatelier's Principle, what happens to a system at equilibrium when itis subjected to a change in concentration, pressure or temperature?

A negatively charged glass rod attracts a hanging object. The nature of the hanging object is?

Which of the following quantities remains conserved for a system which is subjected to a conservative force?

The 3rd step of the Carnot cycle is?

When cotton and rubber are rubbed together, it will result in which of the following?

Keeping the linear velocity of a particle moving in a circular path constant, as the radius of the circular path decreases, the centripetal acceleration?

From the following, identify the applications of scattering of light?

1. (a) Danger signals being red
2. (b) Advanced sun rise and delayed sun set
3. (c) Twinkling of stars
4. (d) Tyndall effect
5. (e) Redness of sun and blueness of sky

When a magnet is moved into a coil connected to a galvanometer, the current is induced in the coil. The induced current does not depend on which of the following factor?

Among the following situations, potential difference is induced in a closed conducting coil when?

Which of the following statements is/are true in case of an incandescent filament bulb?

1. (a) Filament can be made of tungsten or nichrome.
2. (b) The glass envelope covering the filament is filled with inactive gases such as nitrogen or argon.
3. (c) Since the filament used is thin, its resistivity is very low.
4. (d) The resistivity of the filament is low to allow more current.
5. (e) The filament material used should have high melting point.

Consider the following statements: Which of the above statements help(s) us to understand the blue colour of a clear sky?

1. (a) The red light has a wavelength about 1.8 times greater than the blue light.
2. b) When sunlight passes through the atmosphere, the fine particles scatter blue light more strongly than red.

Two metallic wires A and B are made of the same material. Wire A has length 1 and radius r while wire B has length 21 and radius 21. The ratio of the resistance of wire A to that of wire B is?

Identify the INCORRECT statement from among the following

Identify the correct statement(s) from among the following?

1. a) Resistivity of a material is dependent on the nature of the material.
2. (b) Resistivity of a material is independent of the area of cross section.
3. (c) Resistivity of a pure metal is more than its alloy.

The magnetic field lines inside a bar magnet are directed from?

A current of 5 A flows through a conductor having resistance 2Ω . The potential difference (in volt) across the ends of the conductor is?

A beam of white light undergoes dispersion through a triangular glass prism forming a band of seven colours. Which of the statements is/are correct?

1. a) The red-coloured component has minimum refractive index.
2. (b) The violet-coloured component deviates the least.
3. (c) All components of white light have same speed in glass.

A current of 5 A flows through an electrical appliance when the potential difference of 50 V is applied across its terminals. What will be the current drawn by the appliance if the potential difference is increased to 110 V?

The value of absolute refractive index of a medium is always?

According to Fleming's right-hand rule, the index finger and the central finger of the right hand represent directions of ______and _________respectively?

If a coil of a conductor with 50 Ω resistance is subjected to time varying magnetic field such that the EMF induced is 5 V, then the induced current in the coil is?

An electric heater rated 1000 W is used for 5 hours daily. For cost per unit of ₹6.00,calculate the total cost for running the device for the month of September (in ₹)?

The phenomenon due to which the relative motion between a conductor and a magnet produces a potential difference across the conductor is called?