During sunrise and sunset, sun appears reddish-orange because
A piece of paper and a coin both having the same mass are dropped from the 10th floor of a building. The piece of paper would take more time to reach the ground because
. The figure given above shows the temperature (T) – Time (t) plot when we start heating a piece of naphthalene. The temperature (T*) at the plateau of the curve signifies
Power required by a boy of mass 30 kg to run up a staircase of 40 steps in 10 seconds is (Height of each step is 15 cm) (Take g = 10 m/s2)
Which one among the following properties of a proton may change while it moves freely in a magnetic field?
The deformation involve changes in volume only the strain is called
The process of photosynthesis involves conversion of
Four resistors of 10000 ohm, 1000 ohm, 100 ohm and 10 ohm are connected in parallel.
What will be their equivalent resistance
Why does the sky appear blue in colour
The function of AC dynamo is
Which one of the following equation is used to convert observed time into normal time in time study ?
Ratio of tensile strengths of woven and non-woven fabrics of GSM same would be
The circular weft knitting machine that rotates in clockwise direction demands 'z' twist yarn that 's' twist yarn because 'z' twist yarn
The Pressley index is the ratio between
The woven fabric air permeability is expressed in
The breaking load of a 200 denier multifilament yarn containing 130 filaments found to be 800 gram force. Its tensile strength in gram force/denier is
When the electrical field parallel to the fibre axis, the refractive index will be
Which one of the following equation is used to calculate the work factor ?
If a fibre obeyed Hooke's law, the load-elongation curve would be a
In LCR circuite, the capacitance is changed from C to 4C. To obtain the same resonant frequency, the inductance value has to be changed to which of the following L values.
In Newton's rings experiment, if the diameter of 10th ring changes from 1.40 to 1.27 cm when a drop of liquid is introduced between the lens and glass plate, what will be the refractive index of the liquid
എത്ര ഡിഗ്രി സെൽഷ്യസ് ആണ് 0 കെൽവിൻ എന്നറിയപെടുന്നത്?
ലോകത്തിൽ ഏറ്റവും കൂടുതൽ സൗരോർജം ഉത്പാദിപ്പിക്കുന്ന രാജ്യം ?
The outside rearview mirror of modern automobiles is marked with warning 'objects in mirror are closer than they appear'.Such mirrors are
A brick is thrown vertically from an aircraft flying two kilometres above earth.The brick will fall with a
Newton's laws of motion does not hold good for objects
Which one of the following physical quantities is the same for molecules of all gases at a given temperature?
The focal length of the lens of a normal human eye is
X-rays are
A body is falling freely under the action of gravity alone in vaccuum.Which one of the following remains constant during a fall?
