Punjab Police Constable Mock Test - 1 Free Online Test 2026

Each Union Territory in India has its own High Court to serve as the highest judicial authority within that territory.

The President of India appoints the Lieutenant Governor of a Union Territory on the advice of the Council of Ministers.

The National Commission for SCs and STs was established in 1990 through the 65th Amendment Act.

The gravitational force between two objects can be calculated using Newton's law of universal gravitation:

F = (G * m¹ * m²) / r²

Where: F is the gravitational force between the objects, G is the gravitational constant (approximately 6.673 × 10^-11 Nm²/kg²), m² and m² are the masses of the two objects, and r is the distance between their centers.

In this case, we have two lead spheres with masses of 1000 kg each, and their centers are 1 meter apart. Plugging these values into the formula, we get:

F = (6.673 × 10^-11 * 1000 * 1000) / 1²

F = 6.673 × 10^-11 * 10⁶

F = 6.673 × 10^-5

So, the gravitational force with which the lead spheres attract each other is approximately 6.673 × 10^-5 Newtons.

Therefore, the correct answer is option D) 6.673 × 10^-5.

The speed of light in a vacuum is approximately 300,000 kilometers per second (km/s).

When light passes from one medium to another (for example, from air to water) with a different refractive index, its speed changes. This change in speed causes the light ray to bend at the boundary between the two media. This bending of light is known as refraction.

Why the other options are incorrect:

• Reflection: Light bounces back from a surface.
• Scattering: Light spreads in different directions after hitting particles.
• Diffraction: Light bends around obstacles or spreads through narrow openings.

The process of separation of a mixture through the action of a solvent is called (b) Filtration. Filtration involves passing a mixture through a filter to separate the components based on their size or physical properties. The solvent is used to facilitate the separation.

A physical property of a substance is (c) Density. Physical properties describe the characteristics of a substance that can be observed or measured without altering its chemical composition. Density refers to the mass per unit volume of a substance.

Aluminum alloys, known for their lightweight properties and good thermal conductivity, are used in the production of automobile pistons. They help reduce the weight of the engine and improve fuel efficiency.

Invar is an alloy primarily composed of iron and nickel. It exhibits low thermal expansion properties, making it useful in precision instruments, such as clocks, scientific devices, and measuring tapes.

For photosynthesis in green plants to occur, all of the mentioned factors are required. Green plants require:

A. Chlorophyll: Chlorophyll is the primary pigment responsible for capturing light energy and initiating the process of photosynthesis.

B. Light: Light energy is necessary for the photosynthetic process to take place. It provides the energy needed to convert carbon dioxide and water into glucose and oxygen.

C. Carbon dioxide and water: Green plants require carbon dioxide (CO2) and water (H2O) as the raw materials for photosynthesis. These molecules are used to produce glucose and oxygen through the process of photosynthesis.

Therefore, all three factors - chlorophyll, light, and carbon dioxide/water - are essential for photosynthesis in green plants to occur, making option D the correct answer.

The dark reaction, also known as the Calvin cycle or the light-independent reaction, is called "dark" because it does not directly require light energy to occur. Unlike the light-dependent reactions of photosynthesis, which require light energy to generate ATP and NADPH, the dark reaction can occur in the absence of light. It takes place in the stroma of the chloroplasts and utilizes the ATP and NADPH produced during the light-dependent reactions to convert carbon dioxide (CO2) into glucose and other organic compounds. Hence, it is called the dark reaction because it can occur in the dark or in the absence of light.

The groundbreaking discovery of India's first lithium deposits, estimated at 5.9 million tonnes, was made in Jammu and Kashmir in February. Subsequent modifications to mining rules in July allowed private miners to explore these critical minerals, and reports indicate that the region will auction its lithium reserves in the coming months.

India's Wholesale Price Index (WPI) recorded a three-month low of minus 0.52% in October, marking the seventh consecutive month of deflation and indicating a downward trend in WPI-based inflation.

Virat Kohli became the first batter in the world to score 50 One Day International (ODI) centuries.

SIDBI partnered with Jocata, a digital lending transformation platform, to launch the innovative 'Sumpoorn' MSME Economic Activity Index, offering a real-time snapshot of India’s essential MSME sector, contributing significantly to the country’s Gross Value Added (GVA) and exports.

Pablo Picasso's renowned painting "Femme à la montre" ("Woman with a Watch") set a record by selling for $139 million at a Sotheby's auction in New York on November 8, 2023. This makes it the second most expensive Picasso painting ever auctioned and the highest-priced artwork sold at auction in the current year.

Defence Minister Rajnath Singh is set to participate in the 10th ASEAN Defence Ministers' Meeting-Plus (ADMM Plus) in Jakarta, Indonesia, from November 16th to November 17th.

The Rashtriya Rail Sanraksha Kosh (RRSK) is a fund established by the Government of India to improve railway safety. The fund provides funding for a variety of measures to prevent and mitigate railway accidents and incidents. The Rashtriya Rail Sanraksha Kosh (RRSK) was established in 2017 under the Railway Safety Act, 2016, as a grant-in-aid fund to improve railway safety.

Weight of the car = (180 × 7 – 72 × 6) = 828 kg
Hence, Option B is correct.

Total milk bought =8.5l+7.25l+9.4l=25.15l

∴ Milk left in booth = 30l−25.15l = 4.850 liters

Let the nos. be 5x and 3x.
Then, 5x - 3x = 10
⇒ 2x = 10, x = 5
Required product = 5x * 3x
⇒ 5 * 5 * 3 * 5 = 375