The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

Options: 1/6,    1/3,    1/8,    1/4


More Chemistry Related questions:

Options: NA

Ans: 895. kis khel mein phree–thro’ shabd ka prayog kiya jaata hai?, 895. kis khel mein phree–thro’ shabd ka prayog kiya jaata hai?

Which of the following cannot be checked in a switch-case statement?
Options: Character,    Integer,    Float,    enum

Ans:C ,C

A system design aid should primarily
Options: help analyse both data and activities,    help in documentation,    generate code,    using a graphical user interface

Ans:A ,A

System prototyping helps the designer in
Options: making the programmers understand how the system will function.,    communicating to the user, quickly, how the system, when developed, will look like and get a feedback.,    giving a demo of the software, to the system manager to whom he reports,    both (a) and (b)

Ans:B ,B

2.Software Engineering is
Options: (A)Associated with production of software as per specification (B) Structured approach to software development, whose aim is to facilitate the production of high-quality software in a cost-effective way. (C) An engineering discipline, concern with software development. (D) None of these 25

Ans:252. (C),252. (C)

Chandoli National Park
Options: Karnataka,Kerala,Maharashtra,MadhyaPradesh


battle of khanwa was fought between
Options: rana sanga and babur, ibrahim lodhi and babur, akbar and Ahmad shah abdali

Ans:rana sanga and babur,rana sanga and babur

A logic circuit which is used to change a BCD number into an equivalent decimal number is
Options: decoder,    encoder,    multiplexer,    code converter

Ans:A ,A

How can you apply exactly the same formatting you did to another text?
Options:  A) Copy the text and paste in new location. Then type the new text again., B) Copy the text and click on Paste Special tool on new place, C) Select the text then click on Format Painter and select the new text, D) All of above,


When you want to insert a blank imbedded excel object in a word document you can
Options: a. Click the object command on the insert menu b. Click the office links button on the standard toolbar c. Click the create worksheet button on the formatting toolbar d. Click the import excel command on the file menu

Ans:#8211; a,#8211; a

. What is the natural mask for class C Network?
Options: B. C. D.

Ans: – B ,

5.With round-robin CPU scheduling in a time shared system
Options: (A)using very large time slices degenerates into First-Come First Served Algorithm (B) using extremely small time slices improves performance (C) using very small time slices degenerate into Last-In-First-Out algorithm (D) using medium sized time slices leades to Shortest Request Time First algorithm. 20

Ans:205. (A),205. (A)

16. Which command is used to copy all files from drive a with extension .txt to the currently logged drive and directory?
Options: a. Copy a. *.txt b. Copy *.txt a: c. Copy *.txt c: d. Copy *.txt all.txt

Ans:Correct Answer: a ,Correct Answer: a

Which of the following applies to Internal DOS commands?
Options: Internal commands can be run whenever the DOS prompt is displayed,    Internal commands are reserved for DOS-level programming,    Internal commands can only be executed from a batch file,    Internal commands are stored on disk separately from COMMAND.COM

Ans:A ,A

jonaas saalk
Options: NA

Ans: 837. karnaatak ke shravanabelagola mein kis jain sant kee vishaal pratima hai?, 837. karnaatak ke shravanabelagola mein kis jain sant kee vishaal pratima hai?

. Which of the following is not a primary storage device?

Options: A) Magnetic tape B) Magnetic disk C) Optical disk D) All of above


To which country does the present UN Secretary-General belongs?
Options: Ghana,    South Korea,    Spain,    Sweden


India's first 'Ladies Special' Suburban train was started by which of the Indian Railway Zone?
Options: Southern,    Northern,    Western,    Eastern


HP stands for
Options: Harmonic Progression,    Horse Power,    both (a) and (b),    None of the above


. Which of the following are loaded in safe mode?
Options: a. Keyboard driver b. Mouse driver c. VGA drive d. All of above

Ans: d, d

The soils whose parent material tend to be rich in sand are
Options: spodsols,    alfisols,    aridsols,    ultisols


What does the show check box in query design window indicate
Options: a. It indicates whether the field is to be used or not b. It indicates whether the field is to be displayed in query result or not c. It indicates whether the field names to be displayed in query result or not d. None of above

Ans:ndash; b,ndash; b

. in MS Access, which data type is appropriate to store large text and numbers?
Options: a. Text b. Memo c. OLE d. Large Text

Ans:– b,– b

If digital data rate of 9600 bps is encoded using 8-level phase shift keying (PSK) method, the modulation rate is
Options: 1200 bands,    3200 bands,    4800 bands,    9600 bands

Ans:B ,B

Conversion of decimal number 7110 to it's binary number equivalent is
Options: 1100112,    11100112,    01100112,    10001112

Ans:D ,D

. Which is the latest version of MS Windows?
Options: a. Windows 2007 b. Windows 8.1 c. Windows 2008 d.Windows 7

Ans: b, b

Which bitwise operator is suitable for turning off a particular bit in a number?
Options: && operator,    & operator,    || operator,    ! operator

Ans:B ,B

598. abhigyaan shaakuntalam’ ke lekhak kaun the?
Options: NA

Ans: kaalidaas, kaalidaas

which of the following is private IP address?
Options: NA

Ans: ,

Client/server security includes which of the following?
Options: Physical security,    Change control security,    Measures taken to secure all systems,    All of the above.

Ans:D ,D

An example of digital, rather than analog, communication is
Options: DDD,    DDS,    WATS,    DDT

Ans:B ,B

716. gujaraat se gova tak samudree tat kya kahalaata hai?
Options: NA

Ans: konkan, konkan

'In Custody', an English novel is written by which one of the following?
Options: Anita Desai,    Vikram Seth,    Shoba De,    V.S. Naipaul


9.How can you display sales grouped by country, region, and salesperson, all at the same time?
Options: (A)Use the Sort Descending command. (B) Use the Pivot table view command (C) Use the find command on specified groups (D) All of above 8

Ans:79. (B),79. (B)

One approach to standardizing storing of data
Options: MIS,    structured programming,    CODASYL specifications,    All of the above

Ans:C ,C

Moment of inertia is
Options: vector,    scalar,    phasor,    tensor


. A paper printout of a document is known as
Options: A) Softcopy output B) Hardcopy output C) Permanent Output D) All of above


13. While working with MS-DOS, which command is used to more file from one directory to another?
Options: a. Rename b. Copy c. Move d. Cp

Ans:Correct Answer: c,Correct Answer: c

The Mistral is
Options: very cold wind, which blows down from the plateau of central France,    swift, dry, cold northerly wind that blows down from the western Alps and the plateau of Southern France and out over the Mediterranean,    wind that blows for 100 days a year and may cause extensive frost damage to plants,    All of the above


What does FSF stand for?
Options: Free Software File,    File Server First,    First Serve First,    Free Software Foundation

Ans:D ,D

What Benjamin Franklin invented?
Options: Bifocal spectacles,    Radio,    Barometer,    Hygrometer


The initial increase of magnetic field in magnetic storms is caused
Options: when the shock wave, associated with the gusty solar wind, compresses the magnetosphere,    when there is a large decrease in field intensity,    when the gust wind itself engulfs the magnetosphere,    None of the above


3.The following you can use in a macro to automatically send a report snapshot in an email message
Options: (A)Use mail (B) Send object (C) Run macro (D) All of the above 8

Ans:83. (B),83. (B)

When a parallel RLC circuit is operating at its resonant frequency:
Options: capacitive reactance is greater than the inductive reactance,    inductive reactance is greater than the capacitive reactance,    inductive reactance is equal to the capacitive reactance,    the difference between inductive and capacitive reactance is equal to the resistance

Ans:C ,C

What is the maximum distance with maximum data rate for 802.11a?
Options: About 65-75 feet,    About 90-100 feet,    About 150 feet,    Over 200 feet

Ans:A ,A

Computing systems designed to supply supervisory information include.
Options: invoicing systems,    payroll systems,    process control systems;,    All of the above

Ans:C ,C

6.What is a Grouped Report?
Options: (A)A type of report that can be generated by the Report Wizard (B) A report that displays data that has been sorted in ascending or descending order(C) A report that displays data grouped by fields you specify (D) None 1

Ans:16. (C),16. (C)

Which SQL-92 standard SQL command can be used to change a table name?
Options: RENAME TABLE,    CHANGE TABLE,    ALTER TABLE,    None of the above is correct.

Ans:D ,D

676. rbi ke nae niyamon ke anusaar chek aur baink draapht kee vaidyata kitane samay tak hotee hai?
Options: NA

Ans: 3 maas, 3 maas

. Which of the following is a way to access secondary memory?

Options: A) Random access memory B) Action method C) Transfer method D) Density method