Description : An ice block with a piece of lead embedded in it floats in water. If ice melts the water level – (1) Rises (2) Falls (3) Remains same (4) Falls first and them rises
Last Answer : (2) Falls
Description : When a cube of ice floating on water in a beaker melts, the level of water in the beaker (a) rises (b) falls (c) remains the same (d) first rises and then falls
Last Answer : Ans:(c)
Description : A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will - (1) first rise and then fall (2) fall (3) remain the same (4) rise
Last Answer : (3) remain the same Explanation: The submerged portion of the ice on melting shrinks a little in volume. So the level of water goes down a little. But this is just made up by the water added by the melting of upper portion.
Description : As the temperature of ice rises, the ice melts and its density _____. A. Decreases B. Remains constant C. Increases D. Increases upto 10 °C
Last Answer : ANSWER: C
Description : A cube of wood supporting a block of mass 200 grains just floats in water. When the block is removed, the cube rises by 2 cm. What is the size of the cube? (a) 6 cm (b) 8 cm (c) 10 cm (d) 12 cm
Description : 'Law of demand' implies that when there is excess demand for a commodity, then (1) price of the commodity falls (2) price of the commodity remains same (3) price of the commodity rises (4) quantity demanded of the commodity falls
Last Answer : (3) price of the commodity rises Explanation: The Law of demand states that the quantity demanded and the price of a commodity are inversely related, other things remaining constant. That is, if ... of the commodity the price starts rising and it continues to rise till equilibrium price is reached.
Description : ‘Law of demand’ implies that when there is excess demand for a commodity, then (1) price of the commodity falls (2) price of the commodity remains same (3) price of the commodity rises (4) quantity demanded of the commodity falls
Last Answer : price of the commodity rises
Description : As the temperature of ice rises, the ice melts and its density? A. Decreases B. Remain constant C. Increases (Answer) D. Increases upto 10C
Last Answer : C. Increases (Answer)
Description : Pick up the incorrect statement from the following: (A) Free surface ground water is subjected to atmospheric pressure (B) Water table surface rises and falls with seasons (C) ... directly proportional to the rate of drawl of water (D) Level of water table remains stationary
Last Answer : (D) Level of water table remains stationary
Description : If ice floating on water in a vessel melts, the water level in the vessel - (1) increases (2) does not change (3) first increases before decreasing (4) decreases
Last Answer : (2) does not change Explanation: When ice floating on water in a vessel melts, the water level in the vessel does not change. This is because when floating, the ice displaces an amount of water ... that the mass of the liquid displaced by a floating object is equivalent to the mass of the object.
Description : If ice floating on water in a vessel melts, the water level in the vessel _______. (1) increases (2) does not change (3) first increases before decreasing (4) decreases
Last Answer : (2) does not change Explanation: When ice floating on water in a vessel melts, the water level in the vessel does not change. This is because when floating, the ice displaces an amount of water equal to its mass, and when melted, it becomes an amount of water equal to its mass.
Last Answer : does not change
Description : A large iceberg melts at the base, but not at the top, because of the reason that (A) Ice at the base contains impurities which lowers its melting point (B) Due to the high pressure at the base, its melting point ... C) The iceberg remains in a warmer condition at the base (D) All (A), (B) and (C)
Last Answer : (B) Due to the high pressure at the base, its melting point reduces
Description : A piece of wetted wood just floats in water. When placed in an oil of specific gravity 0.75, it will a.Float with upside down b.Sink c.Float for sometime and then sink d.Float with 3/4 of volume above the liquid surface e.Float with 1/4 of volume above the liquid level
Last Answer : b. Sink
Description : When a ship enters the sea from a river (1) It rises a little (2) It sinks a little (3) It remains at the same level (4) It rises or sinks depending on the material it is made of
Last Answer : (1) It rises a little Explanation: On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, or 599 mM). Seawater is denser than hot fresh water and pure water (density 1.0 g/ml) because the dissolved salts add mass without contributing significantly to the volume.
Description : When a ship enters the sea from a river (1) it rises a little (2) it sinks a little (3) it remains at the same level (4) it rises or sinks depending on the material it is made of
Last Answer : it rises a little
Description : When the ice floating in a glass of water melts, the level of water will (a) Increase (b) Decrease (c) Remain constant (d) First increase and then decrease
Description : When price of a substitute of commodity falls, the demand for - (1) falls (2) remains unchanged (3) increases at increasing rate (4) rises
Last Answer : (1) falls Explanation: Cross Price Effect refers to effect on the demand for a given commodity due to a change in the price of a substitute commodity. A change (increase or decrease) in the ... the given commodity (tea) also decreases. It shifts the demand curve of the given commodity towards left.
Description : Over short period, when income rises, average propensity to consume usually - (1) rises (2) falls (3) remains constant (4) fluctuates
Last Answer : (2) falls Explanation: Keynes postulated that aggregate consumption is a function of aggregate current disposable income. The Keynesian consumption function is written as: C = a + eY a > 0, 0 < c < 1; ... the disposal in-come. So as income increases, average propensity to consume (APC = C/Y) falls.
Description : If the price of an inferior good falls, its demand - (1) rises (2) falls (3) remains constant (4) can be any of the above
Last Answer : (1) rises Explanation: Some goods are known as inferior goods. With inferior goods, there is an inverse relationship between real income and the demand for the good in question. If real incomes rise, the ... than rely on the more inferior bus, so the demand for bus travel falls as real incomes rise.
Description : When price of a substitute of commodity ‘x’ falls, the demand for ‘x’ : (1) falls (2) remains unchanged (3) increases at increasing rate (4) rises
Last Answer : falls
Description : Over short period, when income rises, average propensity to consume usually (1) rises (2) falls (3) remains constant (4) fluctuates
Description : If the price of an inferior good falls, its demand (1) rises (2) falls (3) remains constant (4) can be any of the above
Last Answer : rises
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 : A cube of wood supporting 200 gm mass just floats in water. When the mass is removed, the cube rises by 2 cm the side of the cube will be a.5 cm b.10 cm c.12.5 cm d.20 cm e.15 cm
Last Answer : a. 5 cm
Description : If ice floating on water in a vessel melts, the water level in the vessel
Description : When a ship enters a sea from a river (a) it rises a little (b) it sinks a little (c) it remains at the same level (d) it rises or sinks depending on the material it is made of
Last Answer : Ans:(a)
Description : When a ship enters a sea from a river (a) It rises a little (b) It sinks a little (c) It remains at the same level (d) It rises or sinks depending on the material it is made of
Description : The total change in level along the line is equal to total back sights (A) Minus total fore sights (B) The total rises minus total falls (C) The reduced level of last point minus reduced level of the first point (D) All the above
Last Answer : (D) All the above
Description : A storm is predicted if atmospheric pressure – (1) Rises suddenly (2) Rises gradually (3) Falls suddenly (4) Falls gradually
Last Answer : (3) Falls suddenly Explanation: Atmospheric pressure is basically the weight of air in the atmosphere above the reservoir, so the level of mercury continues to change until the weight of mercury in the ... reduces the weight of air above the reservoir so the mercury level drops to a lower level.
Description : A storm is predicted if atmospheric pressure (1) rises suddenly (2) rises gradually (3) falls suddenly (4) falls gradually
Last Answer : falls suddenly
Description : . At the Melting Moments, an ice cream parlour, customers place their orders, watch their ice- cream sundaes being prepared, and then quickly eat the sundaes in the store before the ice cream ... known as A. Inseparability B. Intangibility C. Heterogeneity D. Perishability E. Dependency
Last Answer : D. Perishability
Description : Neoclassical economics concerns itself with the determination of various prices. In the branch of Microeconomics, economists are concerned with _________, while in Macroeconomics they consider _________ (a) Price ... prices: the aggregate price level ; (d) Costs to consumers: costs to producer
Last Answer : (c) Individual product prices: the aggregate price level ;
Description : A blanket of crystals that covers all. Nothing can escape its fall. It will put you to sleep in a harsh way, and you will never again see the day It's on the earth always and forever, part ... never. Floats and falls like little butterflies. Catch them and they will surely die. What am I? -Riddles
Last Answer : Snow.
Description : The atmospheric temperature during melting of ice/snow (in the atmosphere) (A) Decreases (B) Increases (C) Remain same (D) May increase or decrease; depends on the altitude where snow melts Answer
Last Answer : A) Decreases
Description : Under progressive taxation, the real value of tax on a given level of real income : (a) decreases under inflation (b) rises under depression (c) rises under inflation (d) remains unchanged under inflation
Last Answer : (c) rises under inflation
Description : A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is (A) 0.83 (B) 0.6 (C) 0.4 (D) 0.3
Last Answer : Answer: Option B
Description : A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury? (A) 0.5 (B) 0.4 (C) 0.515 (D) 0.5
Last Answer : Answer: Option C
Description : Tea and Coffee are perfect substitute of each other, given the price of Tea and Coffee being `100 and `200 per Kg. a consumer is prepared to buy 3 Kg. of each. If the price of tea remain same and the price of ... elasticity of substitution between Tea and Coffee is (a) 1 ; (b) 4 ; (c) 5 ; (d) 3
Last Answer : (c) 5 ;
Description : How much current can flow through a piece if fuse wire before it melts?
Last Answer : What is the answer ?
Description : A cylindrical block of wood floats in water with four-fifth of its volume submerged in water. The relative density of wood is (a) 0.8 (b) 0.9 (c) 1.0 (d) 1.2
Description : When ice melts into water, which type of change occurs in entropy? -Do You Know?
Last Answer : physical change ouccers
Description : When ice melts into water, which type of change occurs in entropy?
Last Answer : Increases
Description : Entropy of the system decreases, when (A) Snow melts into water (B) A gas expands spontaneously from high pressure to low pressure (C) Water is converted into ice (D) Both (B) & (C)
Last Answer : (D) Both (B) & (C)
Description : Twenty grams of ice at 0˚C melts to water at 0˚C. How much does the entropy of the 20g change in this process? a. 30.5 J/K b. 24.6 J/K c. 21.3 J/K d. 15.7 J/K
Last Answer : 24.6 J/K
Description : When a bar magnet is cut into two equal halves, the pole strength of each piece (1) becomes double (2) becomes half (3) becomes zero (4) remains the same
Last Answer : (4) remains the same Explanation: The poles remains same whether the magnet is cut into two equal half or more and also pole strength remains same but magnetic moment reduces due to decrease in the length of ... is called north pole (N-poled of the magnet and the other end the south pole (S-pole).
Description : When a bar magnet is cut into two equal halves, the pole strength of each piece – (1) becomes double (2) becomes half (3) becomes zero (4) remains the same
Last Answer : remains the same
Description : How come if you get a pop and it's watered down you notice immediately and refuse to drink it, but if you've been drinking a giant pop for a while and the ice melts and it gets all watery near the bottom... you still drink it and its just as delicious?
Last Answer : Quality principle