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 : 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 : 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 : The knot is a nautical measure of: w) length x) speed y) acceleration z) displacement
Last Answer : ANSWER: X -- SPEED
Description : The centre of the reflecting surface of a spherical mirror is called the : (1) Radius (2) Centre of Curvature (3) Pole (4) Focus
Last Answer : (3) Pole Explanation: The center of the reflecting surface of a spherical mirron is called as the pole of the mirror which is mainly known as the center of curvature.
Description : The focal length of a concave spherical mirror is equal to 1 meter. What is the radius of curvature of this mirror?
Last Answer : ANSWER: 2 METERS
Description : Which of the following is the unit of distance in navigation? (1) Knot (2) Nautical mile (3) Bar (4) Angstrom
Last Answer : (2) Nautical mile Explanation: A nautical mile is based on the circumference of the earth, and is equal to one minute of latitude. It is slightly more than a statute (land measured) mile (1nautical mile = 1.1508 statute miles).
Description : Hygrometer is used to measure a. Pressure b. Humidity c. Wind speed d. Solar radiation
Last Answer : Humidity
Description : 2. The radius of curvature of a spherical mirror is 20 cm. What is its focal length? -Physics-10
Last Answer : Radius of curvature (R) = 20 cm Radius of curvature of the spherical mirror = 2 × Focal length (f) R = 2f f= R/2 = 20 / 2 = 10 Therefore, the focal length of the spherical mirror is 10 cm.
Description : A spherical convex surface separates object and image space of refractive index `1.0 and 4/3.` If radius of curvature of the surface is `10cm,` find i
Last Answer : A spherical convex surface separates object and image space of refractive index `1.0 and 4/3.` If ... of the surface is `10cm,` find its power.
Description : 147 A ray directed towards the centre of curvature of a spherical mirror a) become parallel to principal axis b)retraces its path c)appears to diverge from focus d)passes through focus.
Last Answer : b)retraces its path
Description : ______ is the defect which occurs in eye due to excessive curvature of cornea and person is not able to see distant objects clearly . a)myopia b)hypermetropia c)squint d)cataract
Last Answer : a)myopia
Description : Which of these events gives us evidence that the earth is spherical? w) a volcanic eruption x) an earthquake y) an eclipse of the moon z) the earth's rotation
Last Answer : ANSWER: Y -- AN ECLIPSE OF THE MOON
Description : Earthquake (shock) waves are….
Last Answer : Infrasonic waves
Description : Infrared thermometer is used to measure — a. Atmospheric temperature b. Solar radiation c. Crop canopy temperature d. Soil temperature
Last Answer : c. Crop canopy temperature
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 of the following is a measure of particle size range? (A) Effective size (B) Uniformity coefficient (C) Coefficient of curvature (D) None of the above
Last Answer : Answer: Option B
Description : The word 'insulation' means – (1) matters which insulate (2) incoming solar radiation (3) insoluble matters (4) None of the above
Last Answer : (2) incoming solar radiation Explanation: Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimeter per minute. Insolation affects temperature. The more the insolation, the higher is the temperature.
Description : The word ‘insolation’ means (1) matters which insulate (2) incoming solar radiation (3) insoluble matters (4) None of the above
Last Answer : incoming solar radiation
Description : Write briefly about (a) Shock Waves (b) Sound Barrier (c) Solar Cell (d) Super Fluid (e) Tsunami (f) Photovoltaic Cell (g) Hygrometer
Last Answer : (a) Shock Waves In fluid dynamics, a shock wave is a nonlinear or discontinuous pressure wave. It can also be when the actual molecular or particle speed is moving faster than the wave ... . Evaporation from the bulb lowers the temperature so that this thermometer usually shows a lower temperature.
Description : What unit is used to measure distances in our solar system how large is the unit?
Last Answer : Feel Free to Answer
Description : Which of the following function can the spring perform? a) Store energy b) Absorb shock c) Measure force d) All of the mentioned
Last Answer : d) All of the mentioned
Description : Which of the following is the only life saving measure in case of anaphylactic shock: A. Intravenous hydrocortisone hemisuccinate B. Intravenous chlorpheniramine maleate C. Intramuscular adrenaline hydrochloride D. Intravenous glucose-saline
Last Answer : C. Intramuscular adrenaline hydrochloride
Description : The maximum value of hoop compression in a dome is given by (A) wR / 4d (B) wR/2d (C) wR/d (D) 2wR/d Where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome
Last Answer : (B) wR/2d
Description : Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of ... front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics
Last Answer : Answer. Nature of image: Real, inverted and same size image is formed at the centre of curvature. Nature of image: Virtual, enlarged and erect image is formed behind the mirror. Nature of image: Virtual ... : Virtual, erect and diminished image is formed between O and F on the same side of object.
Description : What is the center of curvature ?
Last Answer : If both sides of the lens are spherical, they will each be part of a specific sphere. The center of that sphere is called the center of curvature of that surface.
Last Answer : The center of the sphere in which the spherical mirror is a special part is called the center of curvature of that mirror.
Last Answer : The radius of curvature of the lens is two.
Description : A concave lens always forms – (1) a real image (2) a virtual image (3) an Image type which depends on object characteristics (4) an image type which depends on lens curvature
Last Answer : (2) a virtual image Explanation: Concave lens always form the virtual and erect image and the image is always diminished. Convex lens forms real image as well as virtual image. It forms both enlarged image and the diminished image.
Description : To create an enlarged real image using a concave mirror, the object must be placed: w) beyond the center of curvature. x) between the center and the focus. y) at the focus. z) closer than the focus.
Last Answer : ANSWER: X -- BETWEEN THE CENTER AND THE FOCUS.
Description : An incident ray comes in parallel to the principle axis of a concave mirror. Is it reflected: w) back along the incident ray x) at 30 degrees to incident ray y) through the focal point z) through the center of curvature
Last Answer : ANSWER: Y -- THROUGH THE FOCAL POINT
Description : A concave lens always forms (1) a real image (2) a virtual image (3) an image type which depends on object characteristics (4) an image type which depends on lens curvature
Last Answer : a virtual image
Description : Momentum of two objects moving with same speed but in opposite direction upon collision is A. increased B. decreased C. is zero D. is infinite
Last Answer : is zero
Description : Why is it important to measure the strength and intensity of an earthquake?
Last Answer : Need answer
Description : What are the measure of the strength of an earthquake is called?
Last Answer : The Richter magnitude scale is used to measure the strength of an earthquake.
Description : What is the measure of how much damage an earthquake causes the surface is called?
Description : What scale do seismologists use to indirectly measure the magnitude of an earthquake?
Last Answer : What is the answer ?
Description : Echo sounding is the technique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere
Last Answer : (1) measure the depth of the sea Explanation: Echo sounding is the technique of using sound pulses to find the depth of water. The interval from the emission of a pulse to reception ... information is then typically used for navigation purposes or in order to obtain depths for charting purposes.
Description : Which scale is used to measure the intensity of earthquake
Last Answer : Richter
Description : The instrument to measure the magnitude of earthquake is called
Last Answer : Seismograph
Description : The accelerometer is used as a transducer to measure earthquake in Richter scale. Its design is based on the principle that A Its natural frequency is very low in comparison to the frequency ... is equal to the frequency of vibration D Measurement of vibratory motion is without any reference point
Last Answer : C Its natural frequency is equal to the frequency of vibration
Description : The accelerometer is used as a transducer to measure earthquake in Richter scale. Its design is based on the principle that a) its natural frequency is very low in comparison to the frequency ... is equal to the frequency of vibration d) measurement of vibratory motion is without any reference point
Last Answer : c) its natural frequency is equal to the frequency of vibration
Description : The accelerometer is used as a transducer to measure earthquake in Richter scale. Its design is based on the principle that ______. (A) its natural frequency is very low in comparison to the ... is equal to the frequency of vibration (D) measurement of vibratory motion is without any reference poin
Last Answer : (C) its natural frequency is equal to the frequency of vibration
Description : The accelerometer is used as a transducer to measure earthquake in Richter scale. Its design is based on the principle that a) its natural frequency is very low in comparison to the frequency ... is equal to the frequency of vibration d) measurement of vibratory motion is without any reference poin
Description : Instrument used to measure earthquake is known as a) Quake meter b) Quake graph c) Seismograph d) Typanicgraph
Last Answer : c) Seismograph
Description : Who discovered the instrument to measure the magnitude of earthquake ? a) Dr Richter b)Dr Jenner c)Dr Watson d)Dr Franklin
Last Answer : a) Dr Richter
Description : Richter scale is used to measure the magnitude of a) lighting b)Charges c)Earthquake d)Rainfall
Last Answer : c)Earthquake
Description : Echo sounding is the tech-nique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere
Last Answer : measure the depth of the sea