Description : The temperature of water at the bottom of a large waterfall is higher than that of the water at the top, because - (1) the falling water absorbs heat from the Sun. (2) the water at the bottom has ... of the falling water is converted into heat. (4) rocks on the bed of the river give out heat.
Last Answer : (3) the kinetic energy of the falling water is converted into heat. Explanation: The water gains kinetic energy as it falls down and loses its potential energy. Assuming no other losses, part of the kinetic energy gain of water is converted into heat, raising the temperature of water.
Description : The temperature of water at the bottom of a large waterfall is higher than that of the water at the top. because (1) the falling water absorbs heat from the Sun. (2) the water at the bottom has greater ... of the falling water is converted into heat. (4) rocks on the bed of the river give out heat.
Last Answer : the kinetic energy of the falling water is converted into heat.
Description : The water in an open pond remains cool even in hot summer because (a) Of continuous evaporation of water (b) Water radiates heat more rapidly than the atmosphere (c) Water absorbs heat less rapidly than the atmosphere (d) Water absorbs heat more rapidly than the atmosphere
Last Answer : Ans:(c)
Description : The increasing amount of CO2 in the atmosphere is slowly raising its temperature because it absorbs (a) the infrared part of the solar radiation (b) the ultraviolet part of the solar radiation (c) all the solar radiations (d) the water vapour of the air
Last Answer : Ans:(a)
Description : Give reason: It is easy to tear wet paper than dry paper.
Last Answer : The tensile strength of paper decreases when paper becomes wet.
Description : Give reason: Wax paper is used in storing cookies and ice-creams.
Last Answer : Wax paper makes it non-porous and keeps the contents moisture resistant. Hence wax or paraffin paper is used in storing cookies, ice-creams etc.
Description : In which process of plant protoplasm and cell wall absorbs water ?
Last Answer : The plant absorbs water in the process of protoplasm and cell wall adsorption.
Description : Which animal absorbs water through its skin ?
Last Answer : Molecule absorbs water through the skin.
Description : Which element absorbs water vapor ?
Last Answer : : The solid absorbs the main water vapor
Description : Why do plants absorbs more water when they loose most of it through transpiration?
Last Answer : Feel Free to Answer
Description : When air passes through silica gel, A. it absorbs water vapour molecules B. latent heat of condensation is released C.dbt of air increases D. all of the mentioned
Last Answer : ANSWER : D
Description : The water from a hand pump is warm in winter because - (1) our body is cold in winter and the water appears to be warm (2) the temperature inside the Earth is higher than the atmospheric ... causes friction which warms up the water (4) inside water comes out and absorbs heat from the environment
Last Answer : (2) the temperature inside the Earth is higher than the atmospheric temperature
Description : The water from a hand pump is warm in winter because - (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric ... causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment
Last Answer : (2) The temperature inside the earth is higher than the atmospheric temperature Explanation: In winter, the outside temperature is lower than that of water flowing out of the pump, and therefore, the ... the outside temperature is higher than the water of the pump, and therefore, it feels cold.
Description : An egg sinks in soft water but floats in a concentrated solution of salt because – (1) Egg absorbs salt from the solution and expands (2) Albumin dissolves in salt solution and egg becomes lighter (3) The density of salt solution exceeds the density of eggs (4) Water has high surface tension
Last Answer : (3) The density of salt solution exceeds the density of eggs Explanation: Following the density principle, the density of the egg compared to the density of the tap water is lesser (the density principle ... and that is why an egg sinks in soft water but floats in a concentrated solution of salt.
Description : Ordinary water is not used as a moderator because, it (A) Has a low absorption cross-section (B) Has a low scattering cross-section (C) Absorbs neutrons (D) Does not absorb neutrons
Last Answer : (C) Absorbs neutrons
Description : Peat is often mixed into the growing medium of container plants because it: a. Is inexpensive b. Has good air and water holding capacities c. Has a high pH d. Absorbs excessive soluble salts
Last Answer : Has good air and water holding capacities
Description : A good quality stone absorbs water less than (A) 5 % (B) 10 % (C) 15 % (D) 25 %
Last Answer : Answer: Option A
Description : A stone is rejected if it absorbs water more than (A) 5 % (B) 10 % (C) 15 % (D) 20
Last Answer : Answer: Option B
Description : The water from a hand pump is warm in winter because (1) Our body is cold in winter and the water appears to be warm (2) The temperature inside the earth is higher than the atmospheric ... causes friction which warms up the water (4) Inside water comes out and absorbs heat from the environment
Last Answer : The temperature inside the earth is higher than the atmospheric temperature
Description : An egg sinks in soft water but floats in a concentrated solution of salt because (1) egg absorbs salt from the solution and expands (2) albumin dissolves in salt solution and egg becomes lighter (3) the density of salt solution exceeds the density of eggs (4) water has high surface tension
Last Answer : the density of salt solution exceeds the density of eggs
Description : A black surface absorbs more heat radiations as compared to a white or a reflecting surface under identical conditions. List two solar devices which make use of this property in their design. -Science
Last Answer : Solar cooker, solar water heater.
Description : An iron hammer, lying in the sun, appears much hotter than its wooden handle because (a) iron is at a higher temperature (b) iron is darker than wood (c) iron absorbs more heat (d) iron is a good conductor of heat
Last Answer : Ans:(d)
Description : A pl ant leaf appears to be green because it (a) Absorbs green light (b) Reflects all but yellow and blue light (c) Reflects green light (d) Absorbs red and yellow light
Description : An object which absorbs all colours ap- pears as?
Last Answer : Black
Description : Which surface absorbs all forms of light and heat?
Last Answer : black surface
Description : The plant which absorbs ammonia di- rectly from the atmosphere?
Last Answer : Paddy
Description : Name the plant that absorbs ammonia di- rectly?
Description : The plants absorbs the element nitrogen in the form of?
Last Answer : Nitrates
Description : Can thick diapers absorbs much more than a thin diaper?
Last Answer : Put one of each on, soil yourself, and post some pictures. Then we can make that determination.
Description : What is the The chemical part of the dye that absorbs light and produces colour called? -Do You Know?
Last Answer : answer:
Description : When chlorophyll absorbs light, what does it gets excited and emits? -Do You Know?
Description : which object absorbs the most sound waves?
Last Answer : earplugs
Description : Which element in the atmosphere absorbs ultraviolet rays ?
Last Answer : Ozone in the atmosphere absorbs ultraviolet rays.
Description : What does an object look like when it absorbs all the light ?
Last Answer : An object appears black when it absorbs all the light.
Last Answer : Black absorbs more light.
Description : If a gas absorbs `200J` of heat and expands by `500 cm^(3)` against a constant pressure of `2 xx 10^(5) N m^(-2)`, then the change in internal energy
Last Answer : If a gas absorbs `200J` of heat and expands by `500 cm^(3)` against a constant pressure of `2 xx 10^(5) N ... . `-100 J` C. `+100 J` D. None of these
Description : A piston filled with `0.04` mole of an ideal gas expands reversible from `50.0mL` at a constant temperature of `37.0^(@)C` . As it does so, it absorbs
Last Answer : A piston filled with `0.04` mole of an ideal gas expands reversible from `50.0mL` at a constant temperature of `37. ... J` D. `q= +208 J, w=+208 J`
Description : A system absorbs reversibly 600 J of heat and performs 250 J of work. The increase in the internal energy of system is :-
Last Answer : A system absorbs reversibly 600 J of heat and performs 250 J of work. The increase in the internal energy of system ... J B. 250 J C. 600 J D. 350 J
Description : A dye absorbs a photon of wavelength `lambda` and re`-` emits the same energy into two phorons of wavelengths `lambda_(1)` and `lambda_(2)` respective
Last Answer : A dye absorbs a photon of wavelength `lambda` and re`-` emits the same energy into two phorons of wavelengths ` ... 2))/((lambda_(1)+lambda_(2))^(2))`
Description : A `[M(H_(2)O)_(6)]^(2+)` complex typically absorbs at around 600 nm. It is allowed to react with ammonia to form a new complex `[M(NH_(3))_(6)]^(2+)`
Last Answer : A `[M(H_(2)O)_(6)]^(2+)` complex typically absorbs at around 600 nm. It is allowed to react with ammonia ... A. 800 nm B. 580 nm C. 620 nm D. 320 nm
Description : (a) `[Ti(H_(2)O)_(6)]^(3+)` absorbs light of wavelength 5000Å. Name one ligand which would form a titanium (III) complex absorbing light to lower wave
Last Answer : (a) `[Ti(H_(2)O)_(6)]^(3+)` absorbs light of wavelength 5000Å. Name one ligand which would form a titanium (III) ... ^(3+)" " (iv) [Pd(en)_(2)]^(2+)`
Description : `""_(92)U^(235)` nucleus absorbs a neutron and disintegrates into `""_(54)Xe^(139) .""_(38)Sr^(94)` and X. What will be the product X ?
Last Answer : `""_(92)U^(235)` nucleus absorbs a neutron and disintegrates into `""_(54)Xe^(139) .""_(38) ... B. 2-neutrons C. `alpha`-particles D. `beta`-particle
Description : A hydrogen atom in ground state absorbs a photon of ultraviolet radiation of wavelength `50 nm` Assuming that the entire photon energy is taken up by
Last Answer : A hydrogen atom in ground state absorbs a photon of ultraviolet radiation of wavelength `50 nm` ... what kinetic energy will the electron be ejected?
Description : What is the name for the structure that absorbs energy from the sun in a cell?
Last Answer : it is a chloroplast
Description : In a forest community a shelf fungus and a slug live on the side of a decaying tree trunk. The fungus digests and absorbs materials from the tree while the slug eats algae growing on the outside of?
Last Answer : Need answer
Description : What is A device that absorbs and draws heat from a hot object dispersing it into the surroundings is which one of the following?
Description : What material absorbs electromagnetic waves best?
Last Answer : That varies A LOT depending on the frequency of the wave. Thereare huge differences in things like absorption, between radiowaves, visible light, gamma rays, etc.
Description : What type of surfaces absorbs heat?
Last Answer : Dark, rough, and/or porous surfaces absorb the most heat (ex.Asphalt)