A force of 50 N moves a box 3 m along the direction of force. Work done is

A 1000 W heater runs for 2 hours. Electrical energy consumed (in kWh) is

A conductor has R = 6 Ω. Two identical conductors are connected in parallel. The equivalent resistance is

A bulb rated 60 W, 230 V draws current approximately

A body of mass 2 kg moving at 4 m/s has kinetic energy

In a speed–time graph, the area under the curve between t₁ and t₂ represents

A convex lens of focal length 20 cm forms an image of an object placed 30 cm from the lens. The image distance (approx.) is

A sound wave has frequency 500 Hz and wavelength 0.68 m in air. Its speed is closest to

A 4 Ω and 6 Ω resistor are in series with 12 V supply. Current in the circuit is

A ray of light from air to glass bends towards the normal because

A north-seeking pole brought near the north pole of a bar magnet will

A stone is dropped from rest from a height. Neglecting air resistance, its speed after 3 s (g ≈ 9.8 m/s²) is about

For a domestic fuse, the material should have

The unit of electric charge is

A mirror that always forms a virtual, erect, same-size image is

Specific heat of water is high. This means, for the same heat supplied, compared to iron, water will

Ohm’s law fails for

A hydrometer is used to measure

A wooden block floats because

Which of the following is an acidic oxide?

Which gas is released when calcium carbonate reacts with dilute hydrochloric acid?

Which of these metals does not react with dilute hydrochloric acid to give hydrogen gas?

Which salt is formed when hydrochloric acid reacts with sodium hydroxide?

In the periodic table, the elements in the same group have the same:

Which of the following is a homogeneous mixture?

The process of converting a liquid into vapour at boiling point is called:

Which reagent is commonly used to test for the presence of starch?

pH of a neutral solution at 25°C is:

The correct chemical formula for baking soda is:

Which type of chemical bond is formed when electrons are transferred from one atom to another?

On heating, which of the following decomposes to give oxygen gas?

The test for carbon dioxide gas is:

Which is a property of bases?

Which of these is an exothermic reaction?

What is formed when iron reacts with oxygen and water?

Which statement about catalysts is true?

Which of the following is a diatomic molecule under normal conditions?

The chemical name of common bleaching powder is:

Which of the following best describes sublimation?

The functional unit of the kidney is:

In photosynthesis, the gas released is:

Which vitamin is produced in the skin in presence of sunlight?

Which blood group is called the universal donor?

Which plant tissue is responsible for transport of water?

The site of fertilization in human females is:

The basic structural and functional unit of life is:

Which organ in humans secretes bile?

DNA is present inside:

Which blood cells are responsible for immunity?

In plants, the loss of water in vapour form from aerial parts is called:

The green pigment in plants that captures light energy is:

The human heart has how many chambers?

Amoeba reproduces by:

Which part of the brain controls voluntary actions like movement of hand and leg?

Which of the following is a hereditary unit?

Which human gland is known as the master gland?

Which process in plants produces oxygen?

The vector of malaria is:

The smallest blood vessels where exchange of gases takes place are:

The mode of the data 5, 8, 4, 5, 5, 8, 4, 7, 8 and x is 5. The value of x is:

धोलावीरा का दुर्गीकृत नगर किस सभ्यता से सम्बंधित है?

कथन (A): उपनिवेशवाद ने भारत का आर्थिक शोषण किया।
कारण (R): ब्रिटेन ने ऊँचे कर लगाए और भारत से संसाधन बाहर ले गया।
सही विकल्प चुनें:

हरियाणा में मुख्य नकदी फसल कौन-सी है?

संघीय व्यवस्था में केन्द्र और राज्य सरकारों की शक्तियाँ कहाँ से प्राप्त होती हैं?

असहयोग आंदोलन के समय कौन-सी पार्टी ने मुख्य भूमिका निभाई?

इनमें से नवीकरणीय संसाधन कौन-सा है?

उपभोक्ता अधिकारों में कौन-सा अधिकार सम्मिलित है?

भारत में "हरित क्रांति" का मुख्य उद्देश्य था:

भारत की अर्थव्यवस्था की जीवनरेखा किन दो नदी तंत्रों को कहा जाता है?

1857 के विद्रोह का मुख्य उद्देश्य था:

अनुच्छेद 370 के सम्बन्ध में 2019 में कौन-सी प्रमुख घटना हुई?

भारत की अर्थव्यवस्था में सबसे प्रचुर संसाधन कौन-सा है?

लोकतंत्र की मुख्य विशेषता क्या है?

अर्थव्यवस्था का प्राथमिक क्षेत्र शामिल करता है:

शासन में लैंगिक समानता का अर्थ है:

साम्राज्यवाद" का अर्थ है:

राजतंत्र और लोकतंत्र में मुख्य अंतर क्या है?

जल संसाधन अर्थव्यवस्था के किस क्षेत्र का हिस्सा हैं?

सार्वभौमिकता" (Sovereignty) का अर्थ है कि राज्य: