IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: 6 B in an O? 2513 0

  • 1
    6 books in an order
    सही
    गलत
  • 2
    6 balls in an over
    सही
    गलत
  • 3
    6 bats in an odd
    सही
    गलत
  • 4
    None of the above
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "6 balls in an over"
व्याख्या :

Answer: B) 6 balls in an over Explanation: 6 b in an o means 6 balls in an over in cricket.

प्र: What role does photosynthesis play in the carbon cycle? 874 0

  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर :
व्याख्या :

In the process of photosynthesis, plants need the sun's energy, water to make food for themselves in the form of ATP ( adenosine triphosphate ) , which is packages of energy. Carbon : coming into the plants ( or algae ) along with water make those ATP into a bigger molecule, which is know as glucose. Formula: 6 CO2 + 6 H2O + Suns Energy -> glucose + oxygen Photosynthesis has an affect on the carbon cycle because it reduces the amount of CO2 in the air and redirects it into sugars which feeds animals as well as humans.   Hence, Photosynthesis removes CO2 from the atmosphere and replaces it with O2.

प्र: Which vehicle is spelled the same forwards and backwards? 1766 0

  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर :
व्याख्या :

Racecar and Civic are the two vehicles which spelled the same forwards an backwards.

प्र: Find the next number in the given number series? 50, 51, 47, 56, 40, ? 3178 0

  • 1
    58
    सही
    गलत
  • 2
    65
    सही
    गलत
  • 3
    76
    सही
    गलत
  • 4
    81
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "65"
व्याख्या :

Answer: B) 65 Explanation: The given number series is 50, 51, 47, 56, 40, ?   5050 + 12 = 5151 - 22 = 4747 + 32 = 5656 - 42 = 4040 + 52 = 65   Hence, the next number in the given number series is 65.

  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "1/6"
व्याख्या :

Answer: B) 1/6 Explanation: Total work is given by L.C.M of 72, 48, 36 Total work = 144 units Efficieny of A = 144/72 = 2 units/day Efficieny of B = 144/48 = 3 units/day Efficieny of C = 144/36 = 4 units/day   According to the given data, 2 x p/2 + 3 x p/2 + 2 x (p+6)/3 + 3 x (p+6)/3 + 4 x (p+6)/3 = 144 x (100 - 125/3) x 1/100 3p + 4.5p + 2p + 3p + 4p = 84 x 3 - 54 p = 198/16.5 p = 12 days.   Now, efficency of D = (144 x 125/3 x 1/100)/10 = 6 unit/day (C+D) in p days = (4 + 6) x 12 = 120 unit Remained part of work = (144-120)/144 = 1/6.

प्र: Is yeast a fungus or bacteria? 1563 0

  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर :
व्याख्या :

Yeast belongs to members of the Kingdom Fungi.   Yeast are single-celled microorganisms that are classified, along with molds and mushrooms in Fungi family.    Yeasts are evolutionally diverse and are therefore classified into two separate phyla, Ascomycota or sac fungi and Basidiomycota or higher fungi, that together form the subkingdom Dikarya.

  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर :
व्याख्या :

We know a proverb that An apple a day keeps the doctor away. To keep the doctor away from her, he gave seven apples, each apple a day.

प्र: Which dinosaur is sometimes referred to as the thunder lizard? 1362 0

  • 1
    Diplodocus
    सही
    गलत
  • 2
    Brontosaurus
    सही
    गलत
  • 3
    Arm reptile
    सही
    गलत
  • 4
    Cunningham
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "Brontosaurus"
व्याख्या :

Answer: B) Brontosaurus Explanation: Although well known as one of the most iconic dinosaurs, Brontosaurus (the 'thunder lizard') has long been considered misclassified. Since 1903, the scientific community has believed that the genus Brontosaurus was in fact the Apatosaurus.

      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