IIT JEE Practice Question and Answer
8Q: Who has been appointed by Flipkart as an in-charge of the newly acquired e-Bay India business ? 1856 05b5cc6cce4d2b4197774e158
5b5cc6cce4d2b4197774e158- 1Anil Gotetitrue
- 2S Aparnafalse
- 3Rajeev Kumarfalse
- 4Kalyan Krishnamurthyfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Anil Goteti"
Explanation :
Answer: A) Anil Goteti Explanation:
Q: Q = mc∆T refers to 1856 05b5cc64de4d2b4197774bcb7
5b5cc64de4d2b4197774bcb7- 1Enthalpy formulafalse
- 2Heat Transfer formulafalse
- 3Specific Heat formulatrue
- 4Heat of Vaporizationfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Specific Heat formula"
Explanation :
Answer: C) Specific Heat formula Explanation: Q = mc∆T refers to Specific Heat formula. When heat energy is added to a substance, the temperature will change by a certain amount. The relationship between heat energy and temperature is different for every material, and the specific heat is a value that describes how they relate. Q = mc∆T Q = heat energy (Joules, J) m = mass of a substance (kg) c = specific heat (units J/kg∙K) ∆T = change in temperature (Kelvins, K)
Q: Economic resources are also called 1855 05b5cc66de4d2b4197774bfb5
5b5cc66de4d2b4197774bfb5- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
Economic resources include land, labour, capital and entrepreneurship. Entrepreneurship is also considered an economic resource because individuals are responsible for creating businesses and moving economic resources in the business environment. These economic resources are also called as Factors of production.
Q: Light from the sun reaches us in nearly 1855 05b5cc6a2e4d2b4197774cbc2
5b5cc6a2e4d2b4197774cbc2- 15 minfalse
- 24.30 hrsfalse
- 38 mintrue
- 45.30 hrsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "8 min"
Explanation :
Answer: C) 8 min Explanation: The light from the sun takes about 8 minutes to reach the Earth after it has been emitted from the sun's surface. The time it takes for light to reach planets in our Solar System varies from about 3 minutes for Mercury to about 5.3 hours for Pluto.
Q: There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number ? 1855 05b5cc6dce4d2b4197774e974
5b5cc6dce4d2b4197774e974- 117false
- 219false
- 313true
- 411false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "13"
Explanation :
Answer: C) 13 Explanation: (385/1001) = 5/13 First Number is 5 => Fourth number is 13
Q: IUPAC full form 1855 05b5cc65ee4d2b4197774be11
5b5cc65ee4d2b4197774be11- 1Indian Union of Pure and Applied Chemistryfalse
- 2International Union of Postal and Application Corporationfalse
- 3International Union of Pure and Applied Chemistrytrue
- 4International University of Poland And Combodiafalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "International Union of Pure and Applied Chemistry"
Explanation :
Answer: C) International Union of Pure and Applied Chemistry Explanation: IUPAC stands for International Union of Pure and Applied Chemistry. A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC).
Q: A passenger train is moving at a speed of 120 km/hr. If the length of the train is 101 meters, how long will it take to cross a railway platform 154 meters long ? 1854 05b5cc6d3e4d2b4197774e540
5b5cc6d3e4d2b4197774e540- 16.24 secfalse
- 26.58 secfalse
- 37.325 secfalse
- 47.65 sectrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "7.65 sec"
Explanation :
Answer: D) 7.65 sec Explanation: Here total distance = 154 + 101 = 255 mtsGiven speed = 120 kmph = 120x5/18 m/secHence, Time = d/s = 255x18/120x5 = 7.65 sec
Q: The probability that a number selected at random from the first 100 natural numbers is a composite number is ? 1853 05b5cc6e3e4d2b4197774ec8e
5b5cc6e3e4d2b4197774ec8e- 13/2true
- 22/3false
- 31/2false
- 434/7false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "3/2"
Explanation :
Answer: A) 3/2 Explanation: The number of exhaustive events = 100 C₁ = 100. We have 25 primes from 1 to 100. Number of favourable cases are 75. Required probability = 75/50 = 3/2.

