20KGK-CH-QBE

Chapter Physics 1

1. For which Diode is used ?(a) modulation(b) oscillation(c) amplification(d) purificationAns: (d) 2. Who among the following developed the technology of underground nuclear explosion ?(a) Dr. Homi J. Bhabha(b) Dr. Vikram Sarabhai(c) Dr. Raja Ramanna(d) Dr. P. K. IyengarAns: (a) 3. Which among the following types of coal produces most heat per unit ?(a) Coal …

Chapter Physics 1 Read More »

Chapter Chemistry 1

1. Baryllium Sulphate is less soluble in water due to(a) High inflammable energy(b) Low Energy of dissociation(c) Low inflammable energy(d) Lonic bandAns: (a) 2. What is the name of that system, which uses radioactivity to decide the period of materials of-pre-historic period ?(a) Radium dating(b) Uranium dating(c) Carbon dating(d) Deuterium datingAns: (c) 3. Cement is …

Chapter Chemistry 1 Read More »

Chapter Biology 1

1. Pencillin is extracted from —(a) yeast (b) algae(c) fungus (d) lichenAns: (c) 2. Which is the effect of antigen in an ill person ?(a) It increases the production of W.B.C.(b) It increases the production of antibiotics(c) It increases the production of anti-serum against bacteria(d) It prevents the growth of bacteriaAns: (b) 3. Which among …

Chapter Biology 1 Read More »

Chapter Physics 2

Part 1. Measurement1. Which of the following pairs of physical quantities has the same dimensions?(a) Work and power(b) Momentum and energy(c) Force and power (d) Work and energy Ans: (d) 2. Which of the following pairs is wrong?(a) Pressure — Barometer(b) Relative density — Pyrometer(c) Temperature — Thermometer(d) Earthquake — Seismograph Ans: (b) 3. Which …

Chapter Physics 2 Read More »

Chapter Chemistry 2

Part 1 States of Matter1. The temperature to which a gas must be cooled before it can be liquefied by compression is called(a) Boyle’s temperature(b) critical temperature(c) liquefaction temperature(d) inversion temperature Ans: (b) 2. Internal energy of gas (ideal) depends only on (a) pressure (b) temperature(c) volume(d) temperature and pressure Ans: (b) 3. The gas …

Chapter Chemistry 2 Read More »

Chapter Biology 2

Part 1 Cell Biology1. Which one of the following is considered as a cell within a cell?(a) Ribosome (b) Chloroplast(c) Lysosome (d) Golgi apparatus Ans: (b) 2. Which organelles in the cell, other than nucleus contains DNA? (a) Centriole (b) Golgi apparatus(c) Lysosomes (d) Mitochondria Ans: (d) 3. Consider the following statements1. Vacuole covered by …

Chapter Biology 2 Read More »

Chapter Science & Technology 2

Part 1 Biotechnology and Nano Technology1. The genetically engineered ‘golden rice is rich in which of the following?(a) Vitamin-A and nicotinic acid(b) B-carotene, vitamin-A and folic acid(c) B-carotene and iron(d) Vitamin-A and niacin Ans: (b) 2. Study the following statements1. The Southern BIot technique is used for the detection of DNA.2. The Northern Blot technique …

Chapter Science & Technology 2 Read More »

Chapter World Geography 1

Part–I Physical World Geography1. Where is the Island of Man located ?(a) Between Northern Ireland and England(b) Between France and England(c) Between Malaysia and Indonesia(d) Between Cuba and Jamaica Ans: (a) 2. Where are most of the earth’s active volcanoes concentrated ?(a) Europe(b) Pacific Occan(c) Africa(d) South America Ans: (b) 3. The Savannah finds its …

Chapter World Geography 1 Read More »

Chapter Ancient India 1

1. Which among the following chronology is correct regarding four ‘samvatas’ ?(a) Saka–Gupta–Hizri–Gregorian(b) Gregorian–Saka–Hizri–Gupta(c) Saka–Gregorian–Hizri–Gupta(d) Hizri–Gupta–Gregorian–SakaAns: (a) 2. The home of Gargi, Maitrey, and Kapila was at(a) Vidisha (b) Ujjain(c) Pataliputra (d) Mithila Ans: (d) 3. Which area of India was known as Avantika in ancient times ?(a) Avadh (b) Ruhelkhand(c) Bundelkhand (d) Malwa Ans: …

Chapter Ancient India 1 Read More »