Which statement describes monochromatic light?
James Bradley
Score: 4.2/5 (72 votes)
In physics, monochromatic describes light that has the same wavelength so it is one color. Broken into Greek roots, the word shows its meaning: monos means one, and khroma means color.
What is monochromatic light?
Monochromatic light is light (optical radiation) where the optical spectrum contains only a single optical frequency. ... Light sources can also be called monochromatic, if they emit monochromatic light. The antonym of monochromatic is polychromatic.
Which statement about the parachutist is correct?
Which statement about the parachutist is correct? A Every force acting on the parachutist is equal to zero and his acceleration is equal to zero.
Which instrument is used to measure accurately the diameter of a thin metal wire Igcse?
Therefore, the screw gauge is an instrument used for measuring accurately the diameter of a thin wire, thickness of a sheet of metal or the sheet of paper. Hence, the option (B), a screw gauge is the correct answer.
Which quantity is measured in Newton seconds ns?
The newton-second (also newton second; symbol: N⋅s or N s) is the derived SI unit of impulse. It is dimensionally equivalent to the momentum unit kilogram-metre per second (kg⋅m/s). One newton-second corresponds to a one-newton force applied for one second.
INTRODUCTION OF MONOCHROMATIC LIGHT & POLYCHROMATIC LIGHT || A SIMPLE EXPERIMENT PERFORMED AT HOME
Which physical quantity has unit Newton second?
Explanation: The newton-second (also newton second; symbol: N⋅s or N s) is the derived SI unit of impulse. It is dimensionally equivalent to the momentum unit kilogram-metre per second (kg⋅m/s).
What unit is kg * MS?
The kilogram-meter per second (kg · m/s or kg · m · s -1 ) is the standard unit of momentum . Reduced to base units in the International System of Units ( SI ), a kilogram-meter per second is the equivalent of a newton-second (N · s), which is the SI unit of impulse.
Which instrument should be used to obtain a more accurate measurement of the diameter of the wire?
The correct answer should be the micrometer. The micrometer is an instrument that is capable of measuring the component of an object to very high precision. It is used to obtain accurate measurements in engineering.
What is the most accurate and precise method to measure the thickness of a coin Igcse?
What is the most accurate and precise method to measure the thickness of a coin? A Use a micrometer screw gauge.
Which instrument will you use to measure accurately the inside diameter of a bottle neck?
Vernier calliper is used to determine the internal diameter of the neck of a water bottle.
How does a parachute change the skydiver's terminal velocity?
As the skydiver gains speed, their weight stays the same but the air resistance increases. ... There is no resultant force and the skydiver reaches terminal velocity. When the parachute opens, the air resistance increases. The skydiver slows down until a new, lower terminal velocity is reached.
What is the initial acceleration of parachutist?
In the previous example we found that our skydiver has an initial acceleration of g = 9.81 m/s2, but as they gain speed the drag force begins to push back and their acceleration decreases (they are still gaining speed each second, they are just not gaining as much speed each second as they were at the start).
Which factors affect the sensitivity of thermometer Igcse?
- Using a thermometer with a smaller glass bulb, as a smaller bulb contains less liquid and therefore, absorbs heat in a shorter time.
- Using a narrow tube, as a small change in volume results in the liquid moving a larger distance along the tube.
What is monochromatic light give an example?
Simply said, light of the same wavelength emits only one colour, making it monochromatic. . These monochromatic lights have been in use for over a century as a monochromatic light source. Sodium lamps, mercury lamps, and spark lamps are all common examples.
What is monochromatic light and give example of it?
The best example of monochromatic light is a laser beam. A laser light results from one atomic transition with a specific single wavelength, which results in a monochromatic light beam. ... Other non-holographic OVDs technologies exist, and are detectable in marked materials with ultraviolet light devices.
What is monochromatic light used for?
Monochromators are used in many optical measuring instruments and in other applications where tunable monochromatic light is wanted. Sometimes the monochromatic light is directed at a sample and the reflected or transmitted light is measured.
Which is the best apparatus to use to measure the thickness of a coin Igcse?
What is the most accurate and precise method to measure the thickness of a coin? A Use a micrometer screw gauge. B Use a ruler and look at the scale perpendicularly.
Which is the best apparatus to use to measure the thickness of a coin past paper?
To measure the thickness of a given sheet using screw gauge. With Vernier Callipers, one is able to measure the length accurately up to 0.1 mm. More accurate measurements up to 0.01 mm or 0.005 mm, may be done using a screw gauge. Screw gauge is an instrument with higher precision than the vernier caliper.
What term is used to describe the diameter of wire?
Wire gauge is a measurement of wire diameter. This determines the amount of electric current the wire can safely carry, as well as its electrical resistance and weight.
What is the best description for measurement?
1 : the act of determining size, capacity, or quantity The instruments provide accurate measurement. 2 : the extent, size, capacity, or amount of something as has been determined The room's measurements are 20 feet by 14 feet.
Which of the instruments paired below are used for measuring the diameter of a wire and the quantity of matter it contains respectively?
Which of the following instruments paired below are used for measuring the diameter of a wire and the quantity of matter it contains respectively? b.Micrometer screw gauge and beam balance.
What is KGF measure?
The kilogram-force (kgf or kgF), or kilopond (kp, from Latin: pondus, lit. 'weight'), is a non-standard Gravitational Metric unit of force. ... That is, it is the weight of a kilogram under standard gravity. Therefore, one kilogram-force is by definition equal to 9.80665 N.
How do you convert KGM to NM?
1 kilogram meter = 9.80665 newton meter.
Who are the units of Newtons named after?
The newton was named for Sir Isaac Newton, whose second law of motion describes the changes that a force can produce in the motion of a body.
