CBSE Class 7 Science CH15 - Light (MCQs)

Light

Do you know a longer lasting rainbow? Read below to find the answer.

MCQs based on NCERT Chapter

Q1: Rectilinear propagation of light means,...

(a) Light can bend like curves.
(b) Light travels in straight line.
(c) Light bounces back by a medium when it falls on the medium.
(d) Light gives us sense of vision.




Q2: Shadows formation shows that light

(a) can travel in vacuum
(b) travels in straight lines
(c) exhibits wave nature.
(d) carries energy.



Q3: Images that cannot be captured on a screen are called _________.

(a) virtual images
(b) real images
(c) inverted images
(d) reflected images



Q4: Which one of the following does NOT use concave mirror?

(a) magnifier mirror by dentist
(b) reflector in flashlight
(c) solar heater
(d) rear view mirror in cars

CBSE Class 10 Science - CH 14 - Sources Of Energy (Short Q and A)

Sources Of Energy

Short Q & A based on NCERT Chapter Source Of Energy

Q1: What are the important limitations of wind energy?

Answer:

1. Cost of maintaining wind energy is high
2. Wind energy farms can be established only at places where wind blows for greater part of year and speed is greater than 15 kmph.

Q2: What are hot spots?

Answer: Due to geological changes molten rock forms in deeper hot region of the earth's crust are pushed upwards which gets collected at some depth below the earth surface. These regions or places are called hot spots.


Q3: State one limitation in harnessing geothermal energy.

Answer: Geothermal hot spots are scattered. Usually these are some distance away from the area that needs energy.


Q4: What are the limitations in harnessing tidal energy?

Answer:

Few suitable places for building tidal energy farms.
Rise and fall of water is not enough to generate electricity on large scale.

CBSE Class 10 - English (Comm) SA1 Question Paper (2014-15)

ENGLISH COMMUNICATIVE - Class 10

Summative Assessment-I (September 2014)

	Time allowed: 3 hours
	The Question paper is divided into three sections: Section A-                                            Reading 20 Marks Section B-                                            Writing & Grammar 25 Marks Section C –                                           Literature 25 Marks General Instructions: (i) All questions are compulsory. (ii) You may attempt any section at time. (iii) All questions of that particular section must be attempted in the correct order.
	SECTION A – READING	20 Marks
Q1:	Read the passage given below and answer the questions/complete the sentences that follow: Sniffer dog Tucker uses his nose to help researchers find out why a killer whale population off the northwest coast of the United States is on the decline. He searches for whale faeces floating on the surface of the water, which are them collected for examination. He is one of the elite team of detection dogs used by scientists studying a number of species including right whales and killer whales. Conservation Canines are fast becoming indispensable tools for biologists according to Aimee Hurt, associate director and co-founder of Working Dogs for Conservation, based in Three Forks, Montana. Over the last few years, though, so many new conservation dog projects have sprung up that Hurt can no longer keep track of them all. Her organization’s dogs and their handlers are fully booked to assist field researchers into 2012. “Dogs have such a phenomenal sense of smell,” explained Sam Wasser, director of the Center for Conservation Biology at the University of Washington in Seattle. He has worked with scat-detection dogs since 1997. Scientists have been using Conservation Canines in their research since 1997. These dogs have enabled them to non-invasively access vast amount of genetic and physiological information which is used to tackle conservation problems around the world. Such information has proved vital for determining the causes and consequences of human disturbances on wildlife as well as the actions needed to mitigate such impacts. The ideal detection dog is extremely energetic with an excessive play drive. These dogs will happily work all day long, motivated by the expectation of a ball game as reward for sample detection. The obsessive, high energy personalities of detection dogs also make them difficult to maintain as pets. As a result, they frequently find themselves abandoned to animal shelters, facing euthanasia. The programme rescues these dogs and offers them a satisfying career in conversation research. (a) According to the text there are a few ................detection dogs like Tucker. (b) Tucker sniffs for whale................ . (c) The dogs are special because they assist in research without ........... . (d) The ideal detection dog ........... . (e) The dogs expect ............... as a reward of their hardwork. (f) ............ of these dogs make it difficult to keep them as pets. (g) These dogs find a career in ............ . (h) The word ‘ euthanasia means .............. .	8

CBSE Class 12 - Business Studies - CH11 - Marketing (Very Short Q and Answers)

Marketing  

image credits: flickr.com

Very Short Q & A based on NCERT Chapter 11

Q1: Define Marketing in modern terms.

Answer: Marketing is the performance of business activities that directs the flow of goods and services from producer to consumer or user.


Q2: List the 4Ps (basic elements) of Marketing Mix.

Answer: Product, Place, Price, Promotion, and Place (or physical distribution).


Q3: Give two examples of services which can be marketable?

Answer: Insurance, education, courier.


Q4: In terms of consumers, how marketing is different from selling?

Answer: The main focus of selling is consumer attraction while marketing focusses on consumer satisfaction.


Q5: Define Marketing Mix.

Answer: It refers to the combination of four basic elements, product, price, promotion and the place known as the four P’s of marketing.

CTET 2015 (September) - Online Registration Starts (Jul 30 - Aug 19)

CTET 2015 (September) - 

Online Registration Starts - Apply Now

Central Teacher Eligibility Test (CTET) conducted by Central Board of Secondary Education (CBSE) has commenced registration for CTET Examination to be held on September 2015.

Interested Candidates may apply online at CTET Website. Online registration process will remain open till August 19, 2015.

There will be two papers of CTET.

(i) Paper I is for a person who wishes to be a teacher for classes I to V.

CBSE Class 9 - Science - CH2 - Is Matter Around Us Pure? (MCQs)

Is Matter Around Us Pure?

MCQs Based on Class 9 Science NCERT Book Chapter 2

Q1: Which of the following is NOT true about colloids?

(a) Particles in a colloid can pass through filter paper.
(b) A colloid is a homogeneous solution.
(c) Colloidal particles exhibit Brownian motion.
(d) Colloidal particles exhibit electrophoresis.



Q2: Which of the following is a heterogeneous mixture?

(a) air
(b) brass
(c) sugar dissolved in water
(d) lime water



Q3: How can we separate cream from milk?

(a) Centrifugation
(b) Chromatography
(c) Sublimation
(d) Distillation

CBSE Class 7 - Science - CH 11 - Transportation In Animals and Plants (MCQs)

Transportation In Animals and Plants 

Human Heart Working

MCQs based on NCERT chapter Class 7 Science

Q1: Name the pigment which gives red colour to the blood in mammals.

(a) Globulin
(b) Haemoglobin
(c) Plasma
(d) Platelets



Q2: The fluid part of the blood is called _______

(a) RBCs
(b) Plasma
(c) Haemoglobin
(d) WBCs



Q3: Which component of blood in mammals build up defense against harmful germs enter in the body?

(a) RBCs
(b) Plasma
(c) Platelets
(d) WBCs



Q4: Upper chambers of a human heart are called?

(a) atria
(b) ventricles
(c) pulmunory vein
(d) vena cava