What is the unit of transmittance?

A transverse wave consists of ________ that make one cycle.

Which of the following is FALSE regarding refraction of light?

The number of significant figures in 1.73 seconds is__________?

Which two fundamental electrical quantities are related by the Ohm's Law?

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?

Electricity is integral to modern life in numerous ways. What is the SI unit for measuring electric current?

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?

The unit of magnetisation is ______?

Which of the following is the Sl unit used for measuring thermodynamic temperature?

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

Magnetic field lines represent the path along which _______?

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?

10^-9 m = ____ A?

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?

The SI unit of power of a lens is?

The voltages across three resistances R₁. R₂ and Ry connected in series are V₁, V2 and V3, respectively. What is the net voltage V across them if I represents the net current flowing through them?

The power of an electric bulb of resistance 18 ohm if no voltage is applied across it is _______?

A galvanometer when connected in a circuit, detects the presence of?

object is placed _________to obtain an inverted and enlarged image?

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.

Induced EMF in a coil during the phenomenon of electromagnetic induction is directly proportional to?

An object is placed at a distance of 10 cm in front of a concave mirror. Its image is formed at a distance at 15 cm on the same side. The focal length of the mirror is?

In which of the following cases does a concave mirror form a real image?

1. (i) Object placed between focus and pole
2. (ii) Object placed at infinity
3. (iii) Object placed at focus

The resistance of a wire of length Land area of cross-section A is 1.0 Ω . The resistance of a wire of the same material, but of length 41 and area of cross-section 5A will be?

The potential difference across a copper wire is 5.0 V when a current of 0.5 A flows through it. The resistance of the wire is?

Two resistors. A (20Ω) and B (30Ω), are connected in parallel. The combination is connected to a 3 V battery. The current through the battery is?

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.

A current-carrying straight conductor is placed in a magnetic field. The conductor experiences the maximum force when the angle between the direction of the current in it and the direction of the magnetic field is?

സെല്ഷ്യസ്സ് &ഫാരെൻഹൈറ്റ്സ്കെയിലുകൾ ഒരേ മൂല്യം കാണിക്കുന്ന താപനിലകൾ ഏത് ?

കേവല പൂജ്യത്തിന്റെ മൂല്യം എത്ര ?

ജലത്തിലെ സൂക്ഷ്‌മ ജീവികളെ നശിപ്പിക്കാൻ ഉപയോഗിയ്ക്കുന്ന കിരണം ഏത് ?

അൾട്രാവയലറ്റ് കിരണംകണ്ടെത്തിയത് ആര് ?

താഴെ പറയുന്നവയിൽ ഏതെല്ലാം വസ്തുക്കൾ ഉപയോഗിച്ച് ഇൻഫ്രാ റെഡ് കിരണങ്ങളുടെ സാനിധ്യം തിരിച്ചറിയുക

1. ബോലോമീറ്റർ
2. ഇൻഫ്രാറെഡ് ഫോട്ടോഗ്രാഫിക് ഫിലിം
3. തെര്മോപൈൽ
4. കാർബൺ