Description : A metal sheet with circular hole is heated. what change will be in the hole?
Last Answer : It will Expand
Description : 1. Which post does the Constitution of India does not mention? 2. What is the Solar Corona' mainly? 3. Who was a blind poet who worshipped Krishna and spread Krishna Bhakti cult? 4. A ... ? 20. By inserting a soft iron piece into solenoid, what does the strength of the magnetic field?
Last Answer : Answer : 1. The Deputy Prime Minister 2. Consists of molten lava 3. Surdas 4. It will Expand 5. The Bank Note Press, Dewas 6. Kathak 7. Hydrogen 8. Alain khan, the father of Dilawar Khan 9. ... Sarwani 14. 1991 15. 15 16. 46 gram 17. Chinook 18. Painters 19. State Election Commission 20. Increase
Description : A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole? (1) Increase (2) Decrease (3) Remain constant (4) Will increase first and then decrease
Last Answer : (1) Increase Explanation: Assuming the disc is uniform and isotropic (the same in different directions), the hole will expand in the same ratio as the metal. It is because the thermal expansion equation ... is made out of metal. And if the circumference of the hole expands, so does the diameter.
Description : A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole?
Last Answer : Decrease
Description : A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole ? (1) Increase (2) Dacrease (3) Remain constant (4) Will increase first and then dcrease
Last Answer : Increase
Description : When a ring of metal is heated what happens to its hole? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion
Last Answer : (1) expands Explanation: The hole size will increase because in expansion the size between two molecules, do not increase so when the molecules on the outer edge move outward. Due to expansion, the ... expansion is the tendency of matter to change in volume in response to a change in temperature.
Description : If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? (1) Increases (2) Decreases (3) Unchanged (4) Depends upon the metal
Last Answer : (1) Increases Explanation: When a metal plate with a circular hole at its centre is heated, definitely along with the areal expansion of the plate the diameter of the circular hole also increases. Using ... of expansions, we find that the hole radius increases at the same linear rate as the metal.
Last Answer : Increases
Description : When a ring of metal is heated what happens to its hole ? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion
Last Answer : expands
Description : A copper plate has a circular hole cut in it. If the plate is heated to a higher temperature, the diameter of the hole (a) Becomes smaller (b) Increases (c) Remains constant (d) Increases but the total area of the plate remains constant
Last Answer : Ans:(b)
Description : A copper disc has a hole. If the disc is heated, the size of the hole - (1) increases (2) decreases (3) No change (4) first increases and than decreases
Last Answer : (1) increases Explanation: When a metal plate with a circular hole at its centre is heated, definitely along with the areal expansion of the plate the diameter (sum of two radii) of the circular hole also increases.
Description : A copper disc has a hole. If the disc is heated, the size of the hole (1) increases (2) decreases (3) No change (4) first increases and than decreases
Last Answer : increases
Description : As shown in the illustrations, most console schematic diagram sheets have letters and/or numbers placed across the top and numbers along the side boarders. The purpose of these markings is to ... small hole over a letter and number, what month and year that particular page was redrawn
Last Answer : Answer: A
Description : A small hole in a sheet of aluminum foil is used to diffract yellow light both under water and in a vacuum. Which is true? w) light diffracts less in the water because its wavelength is ... because its wavelength is larger. z) light diffracts more in the water because its wavelength is smaller.
Last Answer : ANSWER: X -- LIGHT DIFFRACTS LESS IN THE WATER BECAUSE ITS WAVELENGTH IS SMALLER
Description : What would happen if the container did not have a pressure release valve when there is heated lavender flowers in it?
Last Answer : What is the answer ?
Description : What happen with the air in a soccer ball with a cooled and heated?
Last Answer : The air pressure goes down when cooled, goes up when heated. Asoccer ball left outdoors in freezing weather does not have muchbounce. Left outside on a hot day, has a lot of bounce.
Description : When a vessel containing a liquid is heated, the level of liquid initially falls and then rises up. Why does it happen so? OR Describe the irregular expansion of liquid.
Last Answer : On heating the liquid water from 0 degree C to 4 degree C, it contracts so the level of liquid initially falls. But after 4 degree C it expands so liquid rises up.
Description : If Earth were destroyed by an asteroid or fell into a black hole, what would happen to ghosts and souls that supposedly are here?
Last Answer : The souls would be released to go to heaven as do the ghosts and spirits.
Description : What would happen if a hole was drilled straight through the Earth from one side to the other and someone jumped in?
Last Answer : Their hair would get all messed up.
Description : What would happen if the Earth were to be struck by a tiny black hole?
Last Answer : A period (.) with an incredibly strong gravitational pull?
Description : A black hole 'belches' light and radiation whenever something falls into its event horizon. What does that mean and why does that happen? -Space
Last Answer : A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black hole's “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of light, which is the speed limit of the cosmos
Description : What would happen if a trickster alien replaced the Sun with a black hole of the same mass? -Space
Last Answer : Our Sun is too small a star to end its life as a black hole. But what would happen if the Sun were suddenly replaced with a black hole of the same mass? Contrary to popular belief, the Solar System would not be sucked in: a solar-mass black hole would exert no more gravitational pull than our Sun.
Description : What would happen if you fell into a black hole? -Space
Last Answer : According to their theory, if something falls into a black hole, it can both get warped in the singularity (where space and time get wonky) and stay inside the event horizon as radiation.
Description : What will happen if the displacer has a hole in it while in line ?
Last Answer : The output will be minimum.
Description : 1.12 litre dry chlorine gas at STP was passed over a heated metal when 5.56 g of chloride of the metal was formed. What is the equivalent weight of th
Last Answer : 1.12 litre dry chlorine gas at STP was passed over a heated metal when 5.56 g of chloride of ... formed. What is the equivalent weight of the metal ?
Description : Which metal gives violet colour in oxidising flame when heated with borax ?
Last Answer : Which metal gives violet colour in oxidising flame when heated with borax ? A. Fe B. Pb C. Co D. Mn
Description : When a metal sulphate is heated in dry test tube, the colour changes from blue to white. Then metal sulphate may be :
Last Answer : When a metal sulphate is heated in dry test tube, the colour changes from blue to white. Then metal sulphate may ... . `Na_(2)SO_(4)` D. None of these
Description : Is Melting coin being heated and turn black this is used as a test for metal a chemical or a physical change?
Last Answer : hg
Description : Is Steel rod Be heated into a molten metal is example of a phase change?
Last Answer : Feel Free to Answer
Description : When a heated metal colls down it?
Last Answer : Need answer
Description : When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy state, they emit light, which we can observe in - (1) Raman spectra (2) Absorption spectra (3) Emission spectra (4) Fluorescence
Last Answer : (3) Emission spectra Explanation: When a metal atom is strongly heated, its electrons absorb the heat energy and jump to a higher energy level. When the electron returns to its original position it ... to the energy the electron has released at each stage °fits fall back to its original state.
Description : A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will - (1) increase (2) decrease (3) remain unaffected (4) have its shape changed
Last Answer : (1) increase Explanation: The metal ball can be considered to be made up of several layers of thinner ones. On heating each of these layers will increase in radius.
Description : A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will - (1) Increase (2) decrease (3) remain unaffected (4) have its shape changed
Last Answer : (1) Increase Explanation: The metal ball can be considered to be made up of several layers of thinner ones. On heating each of these layers will increase in radius. As the inner most layer also increases its radius, the volume inside it i.e, the volume of the hollow portion will also increase.
Description : The process, whereby electrons gain sufficient energy to be released from the surface of a thin, heated metal plate, is known as _____________. A. photo electric emission B. secondary emission C. thermionic emission D. regressive emission
Last Answer : Answer: C
Description : Pick out the wrong statement. (A) The toughness of a material decreases, when it is heated (B) Crane hooks are normally made of wrought iron (C) Cold working of a metal decreases its ... (D) The temperature at which new grains are formed in a metal is known as the recrystallisation temperature
Last Answer : (C) Cold working of a metal decreases its fatigue strength
Description : What happens when nitrates of alkaline earth metal is heated?
Last Answer : Ans The nitrates are made by dissolution of the carbonates in dilute nitric acid. Magnesium nitrate crystallises with six molecules of water, whereas barium nitrate crystallises as the anhydrous salt. ... hydration enthalpy. All of them decompose on heating to give the oxide like lithium nitrate.
Description : What happens when nitrates of alkalin earth metal is heated?
Last Answer : The nitrates are made by dissolution of the carbonates in dilute nitric acid. Magnesium nitrate crystallises with six molecules of water, whereas barium nitrate crystallises as the anhydrous salt. This again shows ... . All of them decompose on heating to give the oxide like lithium nitrate.
Description : Four identical samples of a metal are heated to different temperatures. Based on the colors of their incandescences, which sample is the hottest? The sample that is: w) blue-white x) bright red y) yellow z) orange
Last Answer : ANSWER: W -- BLUE-WHITE
Description : When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in (1) Raman spectra (2) Absorption spectra (3) Emission spectra (4) Fluorescence
Last Answer : Emission spectra
Description : It is required to make a closed cylindrical tank of height 1m and base diameter 140cm from a metal sheet. How many square meters of the sheet are required for the same? -Maths 9th
Last Answer : Let h be the height and r be the radius of a cylindrical tank. Height of cylindrical tank, h = 1m Radius = half of diameter = (140/2) cm = 70cm = 0.7m Area of sheet required = Total surface are of tank = 2πr( ... [2 (22/7) 0.7(0.7+1)] = 7.48 Therefore, 7.48 square meters of the sheet are required.
Description : It is required to make a closed cylindrical tank of height 1 m and base diameter 140 cm from a metal sheet. -Maths 9th
Last Answer : Radius of the closed cylindrical tank = 140/2 cm = 70 cm = 0.7 m Height of the closed cylindrical tank = 1 m Area of metal sheet required = 2πr(r + h) = 2 x 22/7 x 0.7 (1 + 0.7) = 7.48 m2
Description : A semi-circular sheet of metal of diameter 28 cm -Maths 9th
Last Answer : When semi-circular sheet is bent to form an open conical cup, the radius of the sheet becomes slant height of the cup and the semi-circular part of the sheet becomes the circumference of the base of the cone. ∴ Slant height of the ... 3 x 22/7 x 7 x 7 x 7√3 = 1078/3.√3 = 359.3 x 1.732 = 622.31 cm3
Description : A semicircular thin sheet of a metal of diameter 28 cm is bent and an open conical cup is made. What is the capacity of the cup ? -Maths 9th
Last Answer : answer:
Description : what- An artist is cutting sheet metal in the shape of triangles to create a sculpture. For what value or values of x will the triangles be similar?
Last Answer : 60 or 65
Description : When I have an outdoor railing galvanized, will it rust over time? Or is it resistant to rust?
Last Answer : Of course I do. the sheet metal is rusty, but a good surface treatment (paint) will extend its life.
Description : A large metal sheet carries an electric current along its surface. Current per unit length is `lambda` . Magnetic field near the metal sheet is.
Last Answer : A large metal sheet carries an electric current along its surface. Current per unit length is `lambda` . Magnetic ... (2pi)` D. `(mu_(0))/(2pilambda)`
Description : Can waxed baking sheets melt onto a metal cooking sheet?
Last Answer : No, they are meant to be put in the oven. That's why they call them baking sheets. If they touch the edge of the oven they can become too hot and scorch, however.
Description : Where can I purchase a perforated metal sheet online?
Last Answer : You can purchase perforated metal sheet online at onlinemetals.com. This website offers a large selection of perforated metal sheest to choose from.
Description : What is the proper procedure for suppressing electrical noise in a mobile station? A. Apply shielding and filtering where necessary B. Insulate a all plain sheet metal surfaces from each other C. ... -static spray liberally to all nonmetallic D. Install filter capacitors in series with all dc wiring
Last Answer : A. Apply shielding and filtering where necessary