IIT JEE рдкреНрд░рд╢реНрди рдФрд░ рдЙрддреНрддрд░ рдХрд╛ рдЕрднреНрдпрд╛рд╕ рдХрд░реЗрдВ
рдкреНрд░: Karthik could cover a distance of 200 km in 22 days while resting for 2 hrs. per day. In how many days (approx) he will cover a distance of 250 km while resting for 2 hrs. per day and moving with 2/3rd of the previous speed ? 1664 05b5cc6cee4d2b4197774e203
5b5cc6cee4d2b4197774e203- 141.25 daystrue
- 237.5 daysfalse
- 339.75 daysfalse
- 440 daysfalse
- рдЙрддреНрддрд░ рджреЗрдЦреЗрдВрдЙрддреНрддрд░ рдЫрд┐рдкрд╛рдПрдВ
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рдЙрддреНрддрд░ : 1. "41.25 days"
рд╡реНрдпрд╛рдЦреНрдпрд╛ :
Answer: A) 41.25 days Explanation: Given Karthik can cover the distance of 200 kms resting 2 hrs per day in 22 days. ┬а Let the initial speed be '1' ┬а Hence, Time = 22(24hrs - 2) ┬а Noe new speed = 2/3 ┬а Let the number of days he take be 'D' ┬а Therefore,┬а2224-2x3200=D24-2x2250 ┬а D = 11 x 3 x 5/4 = 41.25 days. = 41 1/4 days.
рдкреНрд░: Digitized information can be used by computers. 1664 05b5cc699e4d2b4197774c73d
5b5cc699e4d2b4197774c73d- 1TRUEtrue
- 2FALSE Answer & Explanation Answer:false
- рдЙрддреНрддрд░ рджреЗрдЦреЗрдВрдЙрддреНрддрд░ рдЫрд┐рдкрд╛рдПрдВ
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рдЙрддреНрддрд░ : 1. "TRUE"
рд╡реНрдпрд╛рдЦреНрдпрд╛ :
Answer: A) TRUE Explanation: TRUE. The computers and electronic devices use digitized information which is easily understood by them. ┬а Digitization is the process of converting analog signals or information of any form into a digital format that can be understood by computer systems or electronic devices. The term is used when converting information, like text, images or voices, and sounds, into binary code.
рдкреНрд░: What type of bone is a phalanx? 1663 05b5cc632e4d2b4197774b9d0
5b5cc632e4d2b4197774b9d0- 1Short bonesfalse
- 2Jointsfalse
- 3Long bonestrue
- 4None of the abovefalse
- рдЙрддреНрддрд░ рджреЗрдЦреЗрдВрдЙрддреНрддрд░ рдЫрд┐рдкрд╛рдПрдВ
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рдЙрддреНрддрд░ : 3. "Long bones"
рд╡реНрдпрд╛рдЦреНрдпрд╛ :
Answer: C) Long bones Explanation: The phalanges or a phalanx are/is digital bones in the hands and feet of most vertebrates. In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges. The phalanges are classed as long bones.
рдкреНрд░: What goes up and down the stairs without moving? 1663 05b5cc636e4d2b4197774b9f0
5b5cc636e4d2b4197774b9f0- 1Umbrellafalse
- 2Liftfalse
- 3Stairstrue
- 4All the abovefalse
- рдЙрддреНрддрд░ рджреЗрдЦреЗрдВрдЙрддреНрддрд░ рдЫрд┐рдкрд╛рдПрдВ
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рдЙрддреНрддрд░ : 3. "Stairs"
рд╡реНрдпрд╛рдЦреНрдпрд╛ :
Answer: C) Stairs Explanation: Those are stairs which goes up and down without moving.
рдкреНрд░: Which of these molecules are polar? Check all that apply. 1663 05b5cc683e4d2b4197774c2d1
5b5cc683e4d2b4197774c2d1- 1SO2false
- 2CH2Cl2false
- 3PCl3false
- 4All the abovetrue
- рдЙрддреНрддрд░ рджреЗрдЦреЗрдВрдЙрддреНрддрд░ рдЫрд┐рдкрд╛рдПрдВ
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рдЙрддреНрддрд░ : 4. "All the above"
рд╡реНрдпрд╛рдЦреНрдпрд╛ :
Answer: D) All the above Explanation: ┬а ┬а1) SO2┬а ┬а ┬а ┬а ┬а ┬а ┬а ┬а ┬а 2) CH2Cl2┬а ┬а ┬а ┬а ┬а ┬а ┬а ┬а 3) PCl3 How to check the given molecules are polar or non polar : If the electronegativity of the two bonded atoms are different then the bond is polar. Although, some molecules contain polar bonds, the molecule may be non-polar. If the polarity of all the bonds present in the molecule are cancel each other then molecule is non-polar. ┬а In the given options, SO2┬а is polar because the dipole moments on the O do not cancel. PCl3┬а is polar because the P-Cl bonds do not cancel out. CH2Cl2┬а polar because the C-Cl bonds do not cancel. ┬а Hence, in brief, Polar molecules are molecules with net dipole due to the presence of partial positive and partial negative charge. For example, water is a polar molecule that has partial positive and partial negative charge on it. CO2 is a non polar compound. ┬а Therefore, all the given options┬аSO2,┬аCH2Cl2 and┬аPCl3┬аare Polar molecules.
рдкреНрд░: Tehri dam is located on which of the following rivers? 1663 05b5cc6b4e4d2b4197774d4af
5b5cc6b4e4d2b4197774d4af- 1Brahmaputrafalse
- 2Godavarifalse
- 3Gangafalse
- 4Bhagirathitrue
- рдЙрддреНрддрд░ рджреЗрдЦреЗрдВрдЙрддреНрддрд░ рдЫрд┐рдкрд╛рдПрдВ
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рдЙрддреНрддрд░ : 4. "Bhagirathi"
рд╡реНрдпрд╛рдЦреНрдпрд╛ :
Answer: D) Bhagirathi Explanation: Tehri dam is located on the river┬аBhagirathi. It is a multi-purpose rock and earth-fill embankment dam on the┬аBhagirathi River┬аnear Tehri in┬аUttarakhand, India. ┬а It is the primary dam of the THDC India Ltd. and the Tehri hydroelectric complex.
рдкреНрд░: Find the odd one out of the following words ? 1663 05b5cc6d9e4d2b4197774e81b
5b5cc6d9e4d2b4197774e81b- 1cruisetrue
- 2crusadefalse
- 3expeditionfalse
- 4campaignfalse
- рдЙрддреНрддрд░ рджреЗрдЦреЗрдВрдЙрддреНрддрд░ рдЫрд┐рдкрд╛рдПрдВ
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рдЙрддреНрддрд░ : 1. "cruise"
рд╡реНрдпрд╛рдЦреНрдпрд╛ :
Answer: A) cruise Explanation: Cruise = a sea voyage for pleasure. All other words are related to тАШjourney on land, sea with an aimтАЩ.
рдкреНрд░: A gland below the bladder and surrounding the urethra? 1663 05b5cc699e4d2b4197774c67a
5b5cc699e4d2b4197774c67a- 1Prostatetrue
- 2Vas deferensfalse
- 3Seminal vesiclefalse
- 4Bulbourethralfalse
- рдЙрддреНрддрд░ рджреЗрдЦреЗрдВрдЙрддреНрддрд░ рдЫрд┐рдкрд╛рдПрдВ
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рдЙрддреНрддрд░ : 1. "Prostate"
рд╡реНрдпрд╛рдЦреНрдпрд╛ :
Answer: A) Prostate Explanation: The prostate gland is a walnut-sized structure that is located below the urinary bladder in front of the rectum. The prostate gland contributes additional fluid to the ejaculate. Prostate fluids also help to nourish the sperm. The urethra, which carries the ejaculate to be expelled during orgasm, runs through the center of the prostate gland.

