IIT JEE प्रश्न और उत्तर का अभ्यास करें

नवीनतमलोकप्रियमूल्यांकनपेज देखें 85 of 416कुल सवाल 3327 जॉइन Examsbook

प्र: Which of the following statements best describes nutrient density? 2979 0

  • 1
    Consume a variety of foods from MyPyramid's ±ve major food groups every day.
    सही
    गलत
  • 2
    Consume foods that have the most nutrition for their kcalories
    सही
    गलत
  • 3
    Choose a number of diFerent foods within any given food group rather than the same old thing.
    सही
    गलत
  • 4
    All the above
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "Consume foods that have the most nutrition for their kcalories"
व्याख्या :

Answer: B) Consume foods that have the most nutrition for their kcalories Explanation: Consume foods that have the most nutrition for their kcalories describes the Nutrient Density.

प्र: How long have i been alive? 2979 0

  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर :
व्याख्या :

This is a different way of asking your age. It can be how long you have been living in days weeks months and years since your birth date.

प्र: Jagan went to another town covering 240 km by car moving at 60 kmph. Then he covered 400km by train moving at 100 kmph and then rest 200 km he covered by a bus moving at 50 kmph. The average speed during the whole journey was ? 2978 0

  • 1
    36 kmph
    सही
    गलत
  • 2
    35 kmph
    सही
    गलत
  • 3
    72 kmph
    सही
    गलत
  • 4
    70 kmph
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 4. "70 kmph"
व्याख्या :

Answer: D) 70 kmph Explanation: By car 240 km at 60 kmphTime taken = 240/60 = 4 hr. By train 240 km at 60 kmphTime taken = 400/100 = 4 hr. By bus 240 km at 60 kmphTime taken = 200/50 = 4 hr. So total time = 4 + 4 + 4 = 12 hr. and total speed = 240+400+200 = 840 kmAverage speed of the whole journey = 840/12 = 70 kmph.

प्र: Statement: There has been a significant drop in the water level of all the lakes supplying water to the city.Courses of action:I. The water supply authority should impose a partial cut in supply to tackle the situation.II. The government should appeal to all the residents though mass media for minimal use of water. 2967 0

  • 1
    Only I follows
    सही
    गलत
  • 2
    Only II follows
    सही
    गलत
  • 3
    Both I & II follows
    सही
    गलत
  • 4
    Neither I nor II follows
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 3. "Both I & II follows"
व्याख्या :

Answer: C) Both I & II follows Explanation: The situation can be tackled by periodic cuts in supply, and urging people to conserve water. So both the courses follow.

प्र: Which elements are malleable and good conductors of electricity? 2965 0

  • 1
    tin and silver
    सही
    गलत
  • 2
    iodine and silver
    सही
    गलत
  • 3
    tin and xenon
    सही
    गलत
  • 4
    iodine and xenon
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 1. "tin and silver"
व्याख्या :

Answer: A) tin and silver Explanation: Tin and Silver are malleable and good conductors of electricity. The other combinations have a non metal in them which are bad conductors.

प्र: What is the defining right of a representative democracy? 2964 0

  • 1
    the right to vote
    सही
    गलत
  • 2
    the right to freedom of speech
    सही
    गलत
  • 3
    the right to petition the government
    सही
    गलत
  • 4
    the right to freedom of religion
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 1. "the right to vote"
व्याख्या :

Answer: A) the right to vote Explanation: The defining right of a representative democracy is the ability to vote for representatives to make decisions on their behalf.   In democratic government, elections are held regularly, in which voters vote for someone who will serve in the levels of local, state, and federal government.

प्र: P alone can complete a piece of work in 6 days. Work done by Q alone in one day is equal to one-third of the work done by P alone in one day. In how many days can the work be completed if P and Q work together  ? 2964 0

  • 1
    5 (2/3)
    सही
    गलत
  • 2
    6 (3/4 )
    सही
    गलत
  • 3
    4 (1/2)
    सही
    गलत
  • 4
    3
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 3. "4 (1/2)"
व्याख्या :

Answer: C) 4 (1/2) Explanation: Work done by P alone in one day = 1/6th of the total work done by Q alone in one day = 1/3(of that done by P in one day) = 1/3(1/6 of the total) = 1/18 of the total.    Work done by P and Q, working together in one day = 1/6 + 1/18  = 4/18 = 2/9    They would take 9/2 days = 4 (1/2) days to complete the work working together.

प्र: ______ : trail :: grain : grail 2961 0

  • 1
    path
    सही
    गलत
  • 2
    holy
    सही
    गलत
  • 3
    train
    सही
    गलत
  • 4
    wheat
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 3. "train"
व्याख्या :

Answer: C) train Explanation: Train becomes trail when the "n" is replaced by an "l", and grain becomes grail when the "n" is replaced by an "l".

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई