Description : Radian per second is unit of _______. (1) Momentum (2) Moment of Inertia (3) Frequency (4) Angle Velocity
Last Answer : (4) Angle Velocity Explanation: The SI unit of angular velocity is radians per second.
Description : Maths | Complex Numbers | If √3 + i = r (cosθ + i sinθ), then find the value of θ in radian measure.
Last Answer : Solution :
Description : A current `i` ampere flows in a circular arc of wire whose radius is `R`, which subtend an angle `3pi//2` radian at its centre. The magnetic induction
Last Answer : A current `i` ampere flows in a circular arc of wire whose radius is `R`, which subtend an angle `3pi//2` radian at ... 0)i)/(R )` D. `3mu_(0)i)/(8R)`
Description : In physics, a radian per second squared is a unit of: w) angular displacement x) angular velocity y) angular acceleration z) angular momentum.
Last Answer : ANSWER: Y -- ANGULAR ACCELERATION
Description : In physics, a radian per second is a unit of: w) angular displacement x) angular velocity y) angular acceleration z) angular momentum.
Last Answer : ANSWER: X -- ANGULAR VELOCITY
Description : Infrared thermometer is used to measure a) Surface temperature b) Flame temperature c) Flue gas temperature d) Hot water temperature
Last Answer : Surface temperature
Description : A student focuses the image of a candle flame, placed at about 2 m from a convex lens of focal length 10 cm, on a screen. After that he moves gradually the flame towards the lens and each time focuses its ... d) What is seen on the screen when the flame is very close (at about 5 cm) to the lens?
Last Answer : (a) The student moves the lens away from the screen to focus the image because on moving the candle towards the lens, the image distance increases. (b)The size of the image increases when the object ... on the screen. A virtual image is formed behind the candle on the same side of the screen.
Description : Knot is a measure of – (1) The speed of ship (2) The curvature of spherical objects (3) Solar radiation (4) Intensity of earthquake shock
Last Answer : (1) The speed of ship Explanation: The knot (pronounced not) is a unit of speed equal to one nautical mile (1.852 km) per hour, approximately 1.151 mph. There is no standard abbreviation but km is commonly used. The knot is a non-SI unit accepted for use with the International System of Units (SI).
Description : Decibel is used to measure the intensity of - (1) Magnetic field (2) Sound (3) Light (4) Heat
Last Answer : (2) Sound Explanation: The decibel (dB) is used to measure sound level, but it is also widely used in electronics, signals and communication.
Description : Pycnometer is an instrument used to measure the – (1) Density (2) Intensity of solar radiation (3) Intensity of earthquake (4) High temperatures
Last Answer : (1) Density Explanation: A gas pycnometer is a laboratory device used for measuring the density - or more accurately the volume - of solids, be they regularly shaped, porous or non-porous, ... , employing some method of has displacement and the volume-pressure relationship known as Boyle's Law.
Description : Pycnometer is an instrument used to measure the (1) density (2) intensity of solar radiation (3) intensity of earthquake (4) high temperatures
Last Answer : density
Description : Knot is a measure of (1) The speed of ship (2) The curvature of spherical objects (3) Solar radiation (4) Intensity of earthquake shock
Last Answer : The speed of ship
Description : In convection heat transfer, if heat flux intensity is doubled then temperature difference between solid surface and fluid will ?
Last Answer : Get doubled.
Description : What is Radian Signal ?
Last Answer : radian signal rad .
Last Answer : 1 Radian = 56 . 2956 Degree.
Description : Derive the relation between radian and degree. Also find out 1” and 1’ in terms of their respective values in radian.
Last Answer : Derive the relation between radian and degree. Also find out 1” and 1’ in terms of their respective values in radian. (Take π = 3.1416)
Description : A plane mirror rotating at an angular velocity of 3 radian/s reflects a light beam. The angular velocity of the reflected beam is -
Last Answer : A plane mirror rotating at an angular velocity of 3 radian/s reflects a light beam. The angular velocity of the reflected beam is -
Description : The phase constant of a wave propagation with frequency of 35 radian/sec and time delay of 7.5 sec is a) 4.66 b) 262.5 c) 46.6 d) 26.25
Last Answer : b) 262.5
Description : The group delay of a wave with phase constant 2.5 units and frequency of 1.2 radian/sec is a) 3.7 b) 1.3 c) 3 d) 2.08
Last Answer : d) 2.08
Description : Calculate the attenuation constant of a conductor of conductivity 200 units, frequency 1M radian/s in air. a) 11.2 b) 1.12 c) 56.23 d) 5.62
Last Answer : a) 11.2
Description : A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be, (A) 10 m (B) 12 m (C) 14 m (D) 16 m
Last Answer : (D) 16 m
Description : A simply supported rolled steel joist 8 m long carries a uniformly distributed load over it span so that the maximum bending stress is 75 N/mm². If the slope at the ends is 0.005 radian and the value of E = 0.2 ... joist, is (A) 200 mm (B) 250 mm (C) 300 mm (D) 400 mm
Last Answer : (D) 400 mm
Description : The 10 mm markings on a levelling staff placed at 20 m are separated by (A) 1/1000 radian (B) 1/1500 radian (C) 1/2000 radian (D) 1/2500 radian
Last Answer : (C) 1/2000 radian
Description : The relationship among twisting moment(T) acting on a rotating shaft, power in watt(W), and angular velocity in radian per second(w) will be (a) T = W/w (b) W = Tw (c) W = T/w (d) none of these
Last Answer : (b) W = Tw
Description : What is the S.I. unit of torsional rigidity? a. Nm b. N.m2 c. Nm/ radian d. None of the above
Last Answer : b. N.m2
Description : The path difference corresponding to a phase difference of π radian is __________. A.2λ B .λ/2 C .λ /4 D. λ
Last Answer : B .λ/2
Last Answer : A sine wave has a frequency of 50 Hz. Its angular frequency is 100 n radian/second.
Description : The wavelength at which the peak of intensity of blackbody radiation Occurs – (1) increases with increase in temperature (2) decreases with increase in temperature (3) is the same at all temperatures (4) does not follow any pattern as temperature changes
Last Answer : (2) decreases with increase in temperature Explanation: According to Wien's displacement law, when the temperature of a blackbody radiator increases, the overall radiated energy increases. ... to its temperature. Shorter-wavelength (higher-frequency) light corresponds to higherenergy photons.
Description : Which of the following property of sound is affected by change in air temperature – (1) Frequency (2) Intensity (3) Amplitude (4) Wavelength
Last Answer : (4) Wavelength Explanation: The wavelength of sound changes with temperature. This is because the speed of sound changes with the temperature. Since the speed of sound is different at different temperature, this ... while the same tone in fresh water at 68°F would have a wavelength of 48.05 feet.
Description : Which of the following property of sound is affected by change in air temperature (1) Frequency (2) Intensity (3) Amplitude (4) Wavelength
Last Answer : Wavelength
Description : The wavelength at which the peak of intensity of blackbody radiation occurs (1) increases with increase in temperature (2) decreases with increase in temperature (3) is the same at all temperatures (4) does not follow any pattern as temperature changes
Last Answer : decreases with increase in temperature
Description : Pick out the correct statement. (A) Higher is the temperature of the radiating body, higher is the wavelength of radiation (B) Logarithmic mean area is used for calculating the heat flow rate ... ) Solid angle subtended by the finite surface at the radiating element is called the angle of incidence
Last Answer : (B) Logarithmic mean area is used for calculating the heat flow rate through a thick walled cylinder
Description : Can Arduino measure light intensity?
Last Answer : Yes, Arduino can measure light intensity using a light sensor, such as the LDR or photoresistor.
Description : Why is it important to measure the strength and intensity of an earthquake?
Last Answer : Need answer
Description : How can you measure your level of intensity during physical activity?
Last Answer : Take your heart rate or pulse.
Description : Which scale is used to measure the intensity of earthquake
Last Answer : Richter
Description : Rate of heat release in a furnace, which is the measure of heat intensity, is defined as (A) kcal/hr/m3 combustion space (B) kcal/m3 combustion space (C) kcal/hr (D) None of these
Last Answer : (A) kcal/hr/m3 combustion space
Description : Colour comparator is used to measure the (A) pH value (B) Electrode potential (C) Colour intensity (D) None of these
Last Answer : Option A
Description : Which instrument is used to measure the intensity of light produced by an unknown source in terms of a standard source?
Last Answer : Photometre
Description : Lux meter is used to measure…… a) Illumination level b) Sound intensity and illumination level c) Harmonics d) Speed
Last Answer : Illumination level
Description : Lux meter is used to measure…… c) Illumination level c) Harmonics d) Sound intensity and illumination level d) Speed
Description : Lux meter is used to measure…… a) Illumination level c) Harmonics b) Sound intensity and illumination level d) Speed
Description : What is the term used to measure the intensity of solar radiation and is equal to one gram calorie per square centimeter per minute?
Last Answer : ANSWER: LANGLEY
Description : Which one of the following units is used to measure intensity of noise? (A) decible (B) Hz (C) Phon (D) Watts/m2
Last Answer : (A) decible
Description : The Beaufort scale is used to measure : (1) Atmospheric pressure (2) Altitudes of mountains (3) Wind velocity (4) Intensity of earthquakes
Last Answer : Wind velocity
Description : Which apparatus is used to measure the intensity of light? (1) Lux meter (2) Calorimeter (3) Anemometer (4) Altimeter
Last Answer : Lux meter
Description : The refractive index of the material of a glass prism depends upon (a) The angle of the prism (b) The intensity of the incident light ray (c) The colour of the incident light ray (d) Size of the prism
Last Answer : Ans:(c)
Description : ____________ is the average rate of transmission of sound energy in a given direction through a cross sectional area of 1 sq.m. at right angle to the direction. A. Sound pressure B. Sound intensity C. Pressure variation D. Loudness
Last Answer : B. Sound intensity
Description : A wave incident on a surface at an angle 60 degree is having field intensity of 6 units. The reflected wave is at an angle of 30 degree. Find the field intensity after reflection. a) 9.4 b) 8.4 c) 10.4 d) 7.4
Last Answer : c) 10.4